[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.2-370-g0d64123

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Tue Jul 26 12:36:23 CDT 2016


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- Log -----------------------------------------------------------------
http://git.mpich.org/mpich.git/commitdiff/0d6412303488428c461986655a56639cbbdbf705

commit 0d6412303488428c461986655a56639cbbdbf705
Author: Sayantan Sur <sayantan.sur at intel.com>
Date:   Thu Jan 7 18:24:53 2016 -0800

    MPL: Provide uthash implementation
    
    Provide a single, prefixed version of uthash in MPL. This way it can
    easily be used by other components in the future, such as Hydra.
    
    Signed-off-by: Ken Raffenetti <raffenet at mcs.anl.gov>

diff --git a/src/include/Makefile.mk b/src/include/Makefile.mk
index 7da2717..7e685fe 100644
--- a/src/include/Makefile.mk
+++ b/src/include/Makefile.mk
@@ -63,7 +63,6 @@ noinst_HEADERS +=                   \
     src/include/mpir_op.h           \
     src/include/mpir_process.h      \
     src/include/mpir_utarray.h      \
-    src/include/mpir_uthash.h       \
     src/include/mpir_misc.h         \
     src/include/mpir_tags.h         \
     src/include/mpir_datatype.h     \
diff --git a/src/include/mpit.h b/src/include/mpit.h
index d2e2986..a8e7a08 100644
--- a/src/include/mpit.h
+++ b/src/include/mpit.h
@@ -44,7 +44,7 @@ static inline cvar_table_entry_t * LOOKUP_CVAR_BY_NAME(const char* cvar_name)
 {
     unsigned cvar_idx;
     name2index_hash_t *hash_entry;
-    HASH_FIND_STR(cvar_hash, cvar_name, hash_entry);
+    MPL_HASH_FIND_STR(cvar_hash, cvar_name, hash_entry);
     MPIR_Assert(hash_entry != NULL);
     cvar_idx = hash_entry->idx;
     return (cvar_table_entry_t *)utarray_eltptr(cvar_table, cvar_idx);
diff --git a/src/include/mpitimpl.h b/src/include/mpitimpl.h
index c3a9d03..bacf7c0 100644
--- a/src/include/mpitimpl.h
+++ b/src/include/mpitimpl.h
@@ -16,7 +16,7 @@
 #include "mpir_assert.h"
 #include "mpir_pointers.h"
 #include "mpir_utarray.h"
-#include "mpir_uthash.h"
+#include "mpl_uthash.h"
 #include "mpir_objects.h"
 
 #ifdef HAVE_ERROR_CHECKING
@@ -58,7 +58,7 @@ typedef struct {
 typedef struct {
     const char *name;
     unsigned idx;
-    UT_hash_handle hh;  /* Makes this structure hashable */
+    MPL_UT_hash_handle hh;  /* Makes this structure hashable */
 } name2index_hash_t;
 
 /* MPI_T control variable (cvar)
diff --git a/src/mpi/comm/commutil.c b/src/mpi/comm/commutil.c
index 3129d6a..c365612 100644
--- a/src/mpi/comm/commutil.c
+++ b/src/mpi/comm/commutil.c
@@ -9,7 +9,7 @@
 #include "mpir_info.h"    /* MPIR_Info_free */
 
 #include "mpl_utlist.h"
-#include "mpir_uthash.h"
+#include "mpl_uthash.h"
 
 /* This is the utility file for comm that contains the basic comm items
    and storage management */
@@ -39,7 +39,7 @@ struct MPIR_Comm_hint_fn_elt {
     char name[MPI_MAX_INFO_KEY];
     MPIR_Comm_hint_fn_t fn;
     void *state;
-    UT_hash_handle hh;
+    MPL_UT_hash_handle hh;
 };
 static struct MPIR_Comm_hint_fn_elt *MPID_hint_fns = NULL;
 
@@ -1091,7 +1091,7 @@ int MPII_Comm_apply_hints(MPIR_Comm * comm_ptr, MPIR_Info * info_ptr)
 
         strncpy(hint_name, hint->key, MPI_MAX_INFO_KEY);
 
-        HASH_FIND_STR(MPID_hint_fns, hint_name, hint_fn);
+        MPL_HASH_FIND_STR(MPID_hint_fns, hint_name, hint_fn);
 
         /* Skip hints that MPICH doesn't recognize. */
         if (hint_fn) {
@@ -1121,8 +1121,8 @@ static int free_hint_handles(void *ignore)
     MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPIR_COMM_FREE_HINT_HANDLES);
 
     if (MPID_hint_fns) {
-        HASH_ITER(hh, MPID_hint_fns, curr_hint, tmp) {
-            HASH_DEL(MPID_hint_fns, curr_hint);
+        MPL_HASH_ITER(hh, MPID_hint_fns, curr_hint, tmp) {
+            MPL_HASH_DEL(MPID_hint_fns, curr_hint);
             MPL_free(curr_hint);
         }
     }
@@ -1154,7 +1154,7 @@ int MPIR_Comm_register_hint(const char *hint_key, MPIR_Comm_hint_fn_t fn, void *
     hint_elt->state = state;
     hint_elt->fn = fn;
 
-    HASH_ADD_STR(MPID_hint_fns, name, hint_elt);
+    MPL_HASH_ADD_STR(MPID_hint_fns, name, hint_elt);
 
     MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPIR_COMM_REGISTER_HINT);
     return mpi_errno;
diff --git a/src/mpi/comm/contextid.c b/src/mpi/comm/contextid.c
index bffb158..d43d677 100644
--- a/src/mpi/comm/contextid.c
+++ b/src/mpi/comm/contextid.c
@@ -9,7 +9,6 @@
 #include "mpir_info.h"    /* MPIR_Info_free */
 
 #include "mpl_utlist.h"
-#include "mpir_uthash.h"
 
 /*
 === BEGIN_MPI_T_CVAR_INFO_BLOCK ===
diff --git a/src/mpi_t/cat_get_index.c b/src/mpi_t/cat_get_index.c
index e50ced8..a9f3254 100644
--- a/src/mpi_t/cat_get_index.c
+++ b/src/mpi_t/cat_get_index.c
@@ -71,7 +71,7 @@ int MPI_T_category_get_index(const char *name, int *cat_index)
     name2index_hash_t *hash_entry;
 
     /* Do hash lookup by the name */
-    HASH_FIND_STR(cat_hash, name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, name, hash_entry);
     if (hash_entry != NULL) {
         *cat_index = hash_entry->idx;
     } else {
diff --git a/src/mpi_t/cvar_get_index.c b/src/mpi_t/cvar_get_index.c
index f49cbc4..050b20c 100644
--- a/src/mpi_t/cvar_get_index.c
+++ b/src/mpi_t/cvar_get_index.c
@@ -71,7 +71,7 @@ int MPI_T_cvar_get_index(const char *name, int *cvar_index)
     name2index_hash_t *hash_entry;
 
     /* Do hash lookup by the name */
-    HASH_FIND_STR(cvar_hash, name, hash_entry);
+    MPL_HASH_FIND_STR(cvar_hash, name, hash_entry);
     if (hash_entry != NULL) {
         *cvar_index = hash_entry->idx;
     } else {
diff --git a/src/mpi_t/mpit.c b/src/mpi_t/mpit.c
index cb8c2dc..588d5be 100644
--- a/src/mpi_t/mpit.c
+++ b/src/mpi_t/mpit.c
@@ -94,7 +94,7 @@ static cat_table_entry_t *MPIR_T_cat_create(const char *cat_name)
     /* Need not to Strdup cat_name, since cat_table and cat_hash co-exist */
     hash_entry->name = cat_name;
     hash_entry->idx = cat_idx;
-    HASH_ADD_KEYPTR(hh, cat_hash, hash_entry->name,
+    MPL_HASH_ADD_KEYPTR(hh, cat_hash, hash_entry->name,
                     strlen(hash_entry->name), hash_entry);
 
     return cat;
@@ -115,7 +115,7 @@ int MPIR_T_cat_add_pvar(const char *cat_name, int pvar_index)
     if (cat_name == NULL || *cat_name == '\0')
         goto fn_exit;
 
-    HASH_FIND_STR(cat_hash, cat_name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, cat_name, hash_entry);
 
     if (hash_entry != NULL) {
         /* Found it, i.e., category already exists */
@@ -149,7 +149,7 @@ int MPIR_T_cat_add_cvar(const char *cat_name, int cvar_index)
     if (cat_name == NULL || *cat_name == '\0')
         goto fn_exit;
 
-    HASH_FIND_STR(cat_hash, cat_name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, cat_name, hash_entry);
 
     if (hash_entry != NULL) {
         /* Found it, i.e., category already exists */
@@ -188,7 +188,7 @@ int MPIR_T_cat_add_subcat(const char *parent_name, const char *child_name)
     }
 
     /* Find or create parent */
-    HASH_FIND_STR(cat_hash, parent_name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, parent_name, hash_entry);
     if (hash_entry != NULL) {
         /* Found parent in cat_table */
         parent_index = hash_entry->idx;
@@ -199,7 +199,7 @@ int MPIR_T_cat_add_subcat(const char *parent_name, const char *child_name)
     }
 
     /* Find or create child */
-    HASH_FIND_STR(cat_hash, child_name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, child_name, hash_entry);
     if (hash_entry != NULL) {
         /* Found child in cat_table */
         child_index = hash_entry->idx;
@@ -235,7 +235,7 @@ int MPIR_T_cat_add_desc(const char *cat_name, const char *cat_desc)
     MPIR_Assert(cat_name);
     MPIR_Assert(cat_desc);
 
-    HASH_FIND_STR(cat_hash, cat_name, hash_entry);
+    MPL_HASH_FIND_STR(cat_hash, cat_name, hash_entry);
 
     if (hash_entry != NULL) {
         /* Found it, i.e., category already exists */
@@ -284,7 +284,7 @@ void MPIR_T_CVAR_REGISTER_impl(
     int cvar_idx;
 
     /* Check whether this is a replicated cvar, whose name is unique. */
-    HASH_FIND_STR(cvar_hash, name, hash_entry);
+    MPL_HASH_FIND_STR(cvar_hash, name, hash_entry);
 
     if (hash_entry != NULL) {
         /* Found it, the cvar already exists */
@@ -332,7 +332,7 @@ void MPIR_T_CVAR_REGISTER_impl(
         /* Need not to Strdup name, since cvar_table and cvar_hash co-exist */
         hash_entry->name =name;
         hash_entry->idx = cvar_idx;
-        HASH_ADD_KEYPTR(hh, cvar_hash, hash_entry->name,
+        MPL_HASH_ADD_KEYPTR(hh, cvar_hash, hash_entry->name,
                         strlen(hash_entry->name), hash_entry);
 
         /* Add the cvar to a category */
@@ -370,7 +370,7 @@ void MPIR_T_PVAR_REGISTER_impl(
     int seq = varclass - MPIR_T_PVAR_CLASS_FIRST;
 
     /* Check whether this is a replicated pvar, whose name is unique per class */
-    HASH_FIND_STR(pvar_hashs[seq], name, hash_entry);
+    MPL_HASH_FIND_STR(pvar_hashs[seq], name, hash_entry);
 
     if (hash_entry != NULL) {
         /* Found it, the pvar already exists */
@@ -407,7 +407,7 @@ void MPIR_T_PVAR_REGISTER_impl(
         /* Need not to Strdup name, since pvar_table and pvar_hashs co-exist */
         hash_entry->name = name;
         hash_entry->idx = pvar_idx;
-        HASH_ADD_KEYPTR(hh, pvar_hashs[seq], hash_entry->name,
+        MPL_HASH_ADD_KEYPTR(hh, pvar_hashs[seq], hash_entry->name,
                         strlen(hash_entry->name), hash_entry);
 
         /* Add the pvar to a category */
diff --git a/src/mpi_t/mpit_finalize.c b/src/mpi_t/mpit_finalize.c
index 04da543..fb19042 100644
--- a/src/mpi_t/mpit_finalize.c
+++ b/src/mpi_t/mpit_finalize.c
@@ -77,13 +77,13 @@ static void MPIR_T_cat_env_finalize(void)
     if (cat_hash) {
         name2index_hash_t *current, *tmp;
         /* Free all entries */
-        HASH_ITER(hh, cat_hash, current, tmp) {
-            HASH_DEL(cat_hash, current);
+        MPL_HASH_ITER(hh, cat_hash, current, tmp) {
+            MPL_HASH_DEL(cat_hash, current);
             MPL_free(current);
         }
 
         /* Free cat_hash itself */
-        HASH_CLEAR(hh, cat_hash);
+        MPL_HASH_CLEAR(hh, cat_hash);
         cat_hash = NULL;
     }
 }
@@ -113,13 +113,13 @@ static void MPIR_T_cvar_env_finalize(void)
     if (cvar_hash) {
         name2index_hash_t *current, *tmp;
         /* Free all entries */
-        HASH_ITER(hh, cvar_hash, current, tmp) {
-            HASH_DEL(cvar_hash, current);
+        MPL_HASH_ITER(hh, cvar_hash, current, tmp) {
+            MPL_HASH_DEL(cvar_hash, current);
             MPL_free(current);
         }
 
         /* Free cvar_hash itself */
-        HASH_CLEAR(hh, cvar_hash);
+        MPL_HASH_CLEAR(hh, cvar_hash);
         cvar_hash = NULL;
     }
 }
@@ -146,13 +146,13 @@ static void MPIR_T_pvar_env_finalize(void)
         if (pvar_hashs[i]) {
             name2index_hash_t *current, *tmp;
             /* Free all entries */
-            HASH_ITER(hh, pvar_hashs[i], current, tmp) {
-                HASH_DEL(pvar_hashs[i], current);
+            MPL_HASH_ITER(hh, pvar_hashs[i], current, tmp) {
+                MPL_HASH_DEL(pvar_hashs[i], current);
                 MPL_free(current);
             }
 
             /* Free pvar_hashs[i] itself */
-            HASH_CLEAR(hh, pvar_hashs[i]);
+            MPL_HASH_CLEAR(hh, pvar_hashs[i]);
             pvar_hashs[i] = NULL;
         }
     }
diff --git a/src/mpi_t/pvar_get_index.c b/src/mpi_t/pvar_get_index.c
index 6ca9e59..d528814 100644
--- a/src/mpi_t/pvar_get_index.c
+++ b/src/mpi_t/pvar_get_index.c
@@ -79,7 +79,7 @@ int MPI_T_pvar_get_index(const char *name, int var_class, int *pvar_index)
     name2index_hash_t *hash_entry;
 
     /* Do hash lookup by the name */
-    HASH_FIND_STR(pvar_hashs[seq], name, hash_entry);
+    MPL_HASH_FIND_STR(pvar_hashs[seq], name, hash_entry);
     if (hash_entry != NULL) {
         *pvar_index = hash_entry->idx;
     } else {
diff --git a/src/include/mpir_uthash.h b/src/mpl/include/mpl_uthash.h
old mode 100644
new mode 100755
similarity index 57%
rename from src/include/mpir_uthash.h
rename to src/mpl/include/mpl_uthash.h
index 8efbff9..ba46af1
--- a/src/include/mpir_uthash.h
+++ b/src/mpl/include/mpl_uthash.h
@@ -1,16 +1,13 @@
-/* MPICH-local modifications:
+/* MPICH changes:
  *
- * 1) Rename header from "uthash.h" to "mpir_uthash.h" to avoid accidentally
- * pulling in a system-installed version of the header.
- *
- * 2) Use MPL_malloc/MPL_free instead of malloc/free
- *
- * The actual macros themselves have not been namespaced, so if a plain
- * "uthash.h" is included anywhere in the tree then there could be a conflict.
+ * - The file name has been changed to avoid conflicts with any system-installed
+ *   "uthash.h" header files.
+ * - some configure-time checking for __typeof() support was added
+ * - intentionally omitted from "mpl.h" in order to require using code to opt-in
+ * - override malloc/free/realloc to call MPL routines
  */
-
 /*
-Copyright (c) 2003-2013, Troy D. Hanson     http://troydhanson.github.com/uthash/
+Copyright (c) 2003-2014, Troy D. Hanson     http://troydhanson.github.com/uthash/
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -32,183 +29,201 @@ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#ifndef MPIR_UTHASH_H_INCLUDED
-#define MPIR_UTHASH_H_INCLUDED
+#ifndef MPL_UTHASH_H
+#define MPL_UTHASH_H
 
 #include <string.h>   /* memcmp,strlen */
 #include <stddef.h>   /* ptrdiff_t */
 #include <stdlib.h>   /* exit() */
 
+#ifdef MPL_HAVE___TYPEOF /* MPICH modification */
 /* These macros use decltype or the earlier __typeof GNU extension.
    As decltype is only available in newer compilers (VS2010 or gcc 4.3+
    when compiling c++ source) this code uses whatever method is needed
    or, for VS2008 where neither is available, uses casting workarounds. */
-#ifdef _MSC_VER         /* MS compiler */
+#if defined(_MSC_VER)   /* MS compiler */
 #if _MSC_VER >= 1600 && defined(__cplusplus)  /* VS2010 or newer in C++ mode */
-#define DECLTYPE(x) (decltype(x))
+#define MPL_DECLTYPE(x) (decltype(x))
 #else                   /* VS2008 or older (or VS2010 in C mode) */
-#define NO_DECLTYPE
-#define DECLTYPE(x)
+#define MPL_NO_DECLTYPE
+#define MPL_DECLTYPE(x)
 #endif
+#elif defined(__BORLANDC__) || defined(__LCC__) || defined(__WATCOMC__)
+#define MPL_NO_DECLTYPE
+#define MPL_DECLTYPE(x)
 #else                   /* GNU, Sun and other compilers */
-#define DECLTYPE(x) (__typeof(x))
+#define MPL_DECLTYPE(x) (__typeof(x))
 #endif
+#else /* !MPL_HAVE___TYPEOF */
+#define MPL_NO_DECLTYPE
+#define MPL_DECLTYPE(x)
+#endif /* !MPL_HAVE__TYPEOF */
 
-#ifdef NO_DECLTYPE
-#define DECLTYPE_ASSIGN(dst,src)                                                 \
+
+#ifdef MPL_NO_DECLTYPE
+#define MPL_DECLTYPE_ASSIGN(dst,src)                                                 \
 do {                                                                             \
   char **_da_dst = (char**)(&(dst));                                             \
   *_da_dst = (char*)(src);                                                       \
 } while(0)
 #else
-#define DECLTYPE_ASSIGN(dst,src)                                                 \
+#define MPL_DECLTYPE_ASSIGN(dst,src)                                                 \
 do {                                                                             \
-  (dst) = DECLTYPE(dst)(src);                                                    \
+  (dst) = MPL_DECLTYPE(dst)(src);                                                    \
 } while(0)
 #endif
 
-/* a number of the hash function use uint32_t which isn't defined on win32 */
-#ifdef _MSC_VER
+/* a number of the hash function use uint32_t which isn't defined on Pre VS2010 */
+#if defined(_WIN32)
+#if defined(_MSC_VER) && _MSC_VER >= 1600
+#include <stdint.h>
+#elif defined(__WATCOMC__) || defined(__MINGW32__) || defined(__CYGWIN__)
+#include <stdint.h>
+#else
 typedef unsigned int uint32_t;
 typedef unsigned char uint8_t;
+#endif
+#elif defined(__GNUC__) && !defined(__VXWORKS__)
+#include <stdint.h>
 #else
-#include <inttypes.h>   /* uint32_t */
+typedef unsigned int uint32_t;
+typedef unsigned char uint8_t;
 #endif
 
-#define UTHASH_VERSION 1.9.8
+#define MPL_UTHASH_VERSION 1.9.9
 
-#ifndef uthash_fatal
-#define uthash_fatal(msg) exit(-1)        /* fatal error (out of memory,etc) */
+#ifndef MPL_uthash_fatal
+#define MPL_uthash_fatal(msg) exit(-1)        /* fatal error (out of memory,etc) */
 #endif
-#ifndef uthash_malloc
-#define uthash_malloc(sz) MPL_malloc(sz)      /* malloc fcn                      */
+#ifndef MPL_uthash_malloc
+#define MPL_uthash_malloc(sz) MPL_malloc(sz)      /* malloc fcn                      */
 #endif
-#ifndef uthash_free
-#define uthash_free(ptr,sz) MPL_free(ptr)     /* free fcn                        */
+#ifndef MPL_uthash_free
+#define MPL_uthash_free(ptr,sz) MPL_free(ptr)     /* free fcn                        */
 #endif
 
-#ifndef uthash_noexpand_fyi
-#define uthash_noexpand_fyi(tbl)          /* can be defined to log noexpand  */
+#ifndef MPL_uthash_noexpand_fyi
+#define MPL_uthash_noexpand_fyi(tbl)          /* can be defined to log noexpand  */
 #endif
-#ifndef uthash_expand_fyi
-#define uthash_expand_fyi(tbl)            /* can be defined to log expands   */
+#ifndef MPL_uthash_expand_fyi
+#define MPL_uthash_expand_fyi(tbl)            /* can be defined to log expands   */
 #endif
 
 /* initial number of buckets */
-#define HASH_INITIAL_NUM_BUCKETS 32      /* initial number of buckets        */
-#define HASH_INITIAL_NUM_BUCKETS_LOG2 5  /* lg2 of initial number of buckets */
-#define HASH_BKT_CAPACITY_THRESH 10      /* expand when bucket count reaches */
+#define MPL_HASH_INITIAL_NUM_BUCKETS 32U     /* initial number of buckets        */
+#define MPL_HASH_INITIAL_NUM_BUCKETS_LOG2 5U /* lg2 of initial number of buckets */
+#define MPL_HASH_BKT_CAPACITY_THRESH 10U     /* expand when bucket count reaches */
 
 /* calculate the element whose hash handle address is hhe */
-#define ELMT_FROM_HH(tbl,hhp) ((void*)(((char*)(hhp)) - ((tbl)->hho)))
+#define MPL_ELMT_FROM_HH(tbl,hhp) ((void*)(((char*)(hhp)) - ((tbl)->hho)))
 
-#define HASH_FIND(hh,head,keyptr,keylen,out)                                     \
+#define MPL_HASH_FIND(hh,head,keyptr,keylen,out)                                 \
 do {                                                                             \
-  unsigned _hf_bkt,_hf_hashv;                                                    \
   out=NULL;                                                                      \
-  if (head) {                                                                    \
-     HASH_FCN(keyptr,keylen, (head)->hh.tbl->num_buckets, _hf_hashv, _hf_bkt);   \
-     if (HASH_BLOOM_TEST((head)->hh.tbl, _hf_hashv)) {                           \
-       HASH_FIND_IN_BKT((head)->hh.tbl, hh, (head)->hh.tbl->buckets[ _hf_bkt ],  \
+  if (head != NULL) {                                                            \
+     unsigned _hf_bkt,_hf_hashv;                                                 \
+     MPL_HASH_FCN(keyptr,keylen, (head)->hh.tbl->num_buckets, _hf_hashv, _hf_bkt);   \
+     if (MPL_HASH_BLOOM_TEST((head)->hh.tbl, _hf_hashv) != 0) {                      \
+       MPL_HASH_FIND_IN_BKT((head)->hh.tbl, hh, (head)->hh.tbl->buckets[ _hf_bkt ],  \
                         keyptr,keylen,out);                                      \
      }                                                                           \
   }                                                                              \
 } while (0)
 
-#ifdef HASH_BLOOM
-#define HASH_BLOOM_BITLEN (1ULL << HASH_BLOOM)
-#define HASH_BLOOM_BYTELEN (HASH_BLOOM_BITLEN/8) + ((HASH_BLOOM_BITLEN%8) ? 1:0)
-#define HASH_BLOOM_MAKE(tbl)                                                     \
+#ifdef MPL_HASH_BLOOM
+#define MPL_HASH_BLOOM_BITLEN (1UL << MPL_HASH_BLOOM)
+#define MPL_HASH_BLOOM_BYTELEN (MPL_HASH_BLOOM_BITLEN/8UL) + (((MPL_HASH_BLOOM_BITLEN%8UL)!=0UL) ? 1UL : 0UL)
+#define MPL_HASH_BLOOM_MAKE(tbl)                                                 \
 do {                                                                             \
-  (tbl)->bloom_nbits = HASH_BLOOM;                                               \
-  (tbl)->bloom_bv = (uint8_t*)uthash_malloc(HASH_BLOOM_BYTELEN);                 \
-  if (!((tbl)->bloom_bv))  { uthash_fatal( "out of memory"); }                   \
-  memset((tbl)->bloom_bv, 0, HASH_BLOOM_BYTELEN);                                \
-  (tbl)->bloom_sig = HASH_BLOOM_SIGNATURE;                                       \
+  (tbl)->bloom_nbits = MPL_HASH_BLOOM;                                           \
+  (tbl)->bloom_bv = (uint8_t*)MPL_uthash_malloc(MPL_HASH_BLOOM_BYTELEN);         \
+  if (!((tbl)->bloom_bv))  { MPL_uthash_fatal( "out of memory"); }               \
+  memset((tbl)->bloom_bv, 0, MPL_HASH_BLOOM_BYTELEN);                            \
+  (tbl)->bloom_sig = MPL_HASH_BLOOM_SIGNATURE;                                   \
 } while (0)
 
-#define HASH_BLOOM_FREE(tbl)                                                     \
+#define MPL_HASH_BLOOM_FREE(tbl)                                                 \
 do {                                                                             \
-  uthash_free((tbl)->bloom_bv, HASH_BLOOM_BYTELEN);                              \
+  MPL_uthash_free((tbl)->bloom_bv, MPL_HASH_BLOOM_BYTELEN);                      \
 } while (0)
 
-#define HASH_BLOOM_BITSET(bv,idx) (bv[(idx)/8] |= (1U << ((idx)%8)))
-#define HASH_BLOOM_BITTEST(bv,idx) (bv[(idx)/8] & (1U << ((idx)%8)))
+#define MPL_HASH_BLOOM_BITSET(bv,idx) (bv[(idx)/8U] |= (1U << ((idx)%8U)))
+#define MPL_HASH_BLOOM_BITTEST(bv,idx) (bv[(idx)/8U] & (1U << ((idx)%8U)))
 
-#define HASH_BLOOM_ADD(tbl,hashv)                                                \
-  HASH_BLOOM_BITSET((tbl)->bloom_bv, (hashv & (uint32_t)((1ULL << (tbl)->bloom_nbits) - 1)))
+#define MPL_HASH_BLOOM_ADD(tbl,hashv)                                            \
+  MPL_HASH_BLOOM_BITSET((tbl)->bloom_bv, (hashv & (uint32_t)((1ULL << (tbl)->bloom_nbits) - 1U)))
 
-#define HASH_BLOOM_TEST(tbl,hashv)                                               \
-  HASH_BLOOM_BITTEST((tbl)->bloom_bv, (hashv & (uint32_t)((1ULL << (tbl)->bloom_nbits) - 1)))
+#define MPL_HASH_BLOOM_TEST(tbl,hashv)                                               \
+  MPL_HASH_BLOOM_BITTEST((tbl)->bloom_bv, (hashv & (uint32_t)((1ULL << (tbl)->bloom_nbits) - 1U)))
 
 #else
-#define HASH_BLOOM_MAKE(tbl)
-#define HASH_BLOOM_FREE(tbl)
-#define HASH_BLOOM_ADD(tbl,hashv)
-#define HASH_BLOOM_TEST(tbl,hashv) (1)
-#define HASH_BLOOM_BYTELEN 0
+#define MPL_HASH_BLOOM_MAKE(tbl)
+#define MPL_HASH_BLOOM_FREE(tbl)
+#define MPL_HASH_BLOOM_ADD(tbl,hashv)
+#define MPL_HASH_BLOOM_TEST(tbl,hashv) (1)
+#define MPL_HASH_BLOOM_BYTELEN 0U
 #endif
 
-#define HASH_MAKE_TABLE(hh,head)                                                 \
+#define MPL_HASH_MAKE_TABLE(hh,head)                                             \
 do {                                                                             \
-  (head)->hh.tbl = (UT_hash_table*)uthash_malloc(                                \
-                  sizeof(UT_hash_table));                                        \
-  if (!((head)->hh.tbl))  { uthash_fatal( "out of memory"); }                    \
-  memset((head)->hh.tbl, 0, sizeof(UT_hash_table));                              \
+  (head)->hh.tbl = (MPL_UT_hash_table*)MPL_uthash_malloc(                        \
+                  sizeof(MPL_UT_hash_table));                                    \
+  if (!((head)->hh.tbl))  { MPL_uthash_fatal( "out of memory"); }                \
+  memset((head)->hh.tbl, 0, sizeof(MPL_UT_hash_table));                          \
   (head)->hh.tbl->tail = &((head)->hh);                                          \
-  (head)->hh.tbl->num_buckets = HASH_INITIAL_NUM_BUCKETS;                        \
-  (head)->hh.tbl->log2_num_buckets = HASH_INITIAL_NUM_BUCKETS_LOG2;              \
+  (head)->hh.tbl->num_buckets = MPL_HASH_INITIAL_NUM_BUCKETS;                    \
+  (head)->hh.tbl->log2_num_buckets = MPL_HASH_INITIAL_NUM_BUCKETS_LOG2;          \
   (head)->hh.tbl->hho = (char*)(&(head)->hh) - (char*)(head);                    \
-  (head)->hh.tbl->buckets = (UT_hash_bucket*)uthash_malloc(                      \
-          HASH_INITIAL_NUM_BUCKETS*sizeof(struct UT_hash_bucket));               \
-  if (! (head)->hh.tbl->buckets) { uthash_fatal( "out of memory"); }             \
+  (head)->hh.tbl->buckets = (MPL_UT_hash_bucket*)MPL_uthash_malloc(              \
+          MPL_HASH_INITIAL_NUM_BUCKETS*sizeof(struct MPL_UT_hash_bucket));       \
+  if (! (head)->hh.tbl->buckets) { MPL_uthash_fatal( "out of memory"); }         \
   memset((head)->hh.tbl->buckets, 0,                                             \
-          HASH_INITIAL_NUM_BUCKETS*sizeof(struct UT_hash_bucket));               \
-  HASH_BLOOM_MAKE((head)->hh.tbl);                                               \
-  (head)->hh.tbl->signature = HASH_SIGNATURE;                                    \
+          MPL_HASH_INITIAL_NUM_BUCKETS*sizeof(struct MPL_UT_hash_bucket));       \
+  MPL_HASH_BLOOM_MAKE((head)->hh.tbl);                                           \
+  (head)->hh.tbl->signature = MPL_HASH_SIGNATURE;                                \
 } while(0)
 
-#define HASH_ADD(hh,head,fieldname,keylen_in,add)                                \
-        HASH_ADD_KEYPTR(hh,head,&((add)->fieldname),keylen_in,add)
+#define MPL_HASH_ADD(hh,head,fieldname,keylen_in,add)                            \
+        MPL_HASH_ADD_KEYPTR(hh,head,&((add)->fieldname),keylen_in,add)
 
-#define HASH_REPLACE(hh,head,fieldname,keylen_in,add,replaced)                   \
+#define MPL_HASH_REPLACE(hh,head,fieldname,keylen_in,add,replaced)               \
 do {                                                                             \
   replaced=NULL;                                                                 \
-  HASH_FIND(hh,head,&((add)->fieldname),keylen_in,replaced);                     \
+  MPL_HASH_FIND(hh,head,&((add)->fieldname),keylen_in,replaced);                 \
   if (replaced!=NULL) {                                                          \
-     HASH_DELETE(hh,head,replaced);                                              \
-  };                                                                             \
-  HASH_ADD(hh,head,fieldname,keylen_in,add);                                     \
+     MPL_HASH_DELETE(hh,head,replaced);                                          \
+  }                                                                              \
+  MPL_HASH_ADD(hh,head,fieldname,keylen_in,add);                                 \
 } while(0)
 
-#define HASH_ADD_KEYPTR(hh,head,keyptr,keylen_in,add)                            \
+#define MPL_HASH_ADD_KEYPTR(hh,head,keyptr,keylen_in,add)                        \
 do {                                                                             \
  unsigned _ha_bkt;                                                               \
  (add)->hh.next = NULL;                                                          \
- (add)->hh.key = (char*)keyptr;                                                  \
- (add)->hh.keylen = (unsigned)keylen_in;                                                   \
+ (add)->hh.key = (char*)(keyptr);                                                \
+ (add)->hh.keylen = (unsigned)(keylen_in);                                       \
  if (!(head)) {                                                                  \
     head = (add);                                                                \
     (head)->hh.prev = NULL;                                                      \
-    HASH_MAKE_TABLE(hh,head);                                                    \
+    MPL_HASH_MAKE_TABLE(hh,head);                                                \
  } else {                                                                        \
     (head)->hh.tbl->tail->next = (add);                                          \
-    (add)->hh.prev = ELMT_FROM_HH((head)->hh.tbl, (head)->hh.tbl->tail);         \
+    (add)->hh.prev = MPL_ELMT_FROM_HH((head)->hh.tbl, (head)->hh.tbl->tail);     \
     (head)->hh.tbl->tail = &((add)->hh);                                         \
  }                                                                               \
  (head)->hh.tbl->num_items++;                                                    \
  (add)->hh.tbl = (head)->hh.tbl;                                                 \
- HASH_FCN(keyptr,keylen_in, (head)->hh.tbl->num_buckets,                         \
+ MPL_HASH_FCN(keyptr,keylen_in, (head)->hh.tbl->num_buckets,                     \
          (add)->hh.hashv, _ha_bkt);                                              \
- HASH_ADD_TO_BKT((head)->hh.tbl->buckets[_ha_bkt],&(add)->hh);                   \
- HASH_BLOOM_ADD((head)->hh.tbl,(add)->hh.hashv);                                 \
- HASH_EMIT_KEY(hh,head,keyptr,keylen_in);                                        \
- HASH_FSCK(hh,head);                                                             \
+ MPL_HASH_ADD_TO_BKT((head)->hh.tbl->buckets[_ha_bkt],&(add)->hh);               \
+ MPL_HASH_BLOOM_ADD((head)->hh.tbl,(add)->hh.hashv);                             \
+ MPL_HASH_EMIT_KEY(hh,head,keyptr,keylen_in);                                    \
+ MPL_HASH_FSCK(hh,head);                                                         \
 } while(0)
 
-#define HASH_TO_BKT( hashv, num_bkts, bkt )                                      \
+#define MPL_HASH_TO_BKT( hashv, num_bkts, bkt )                                  \
 do {                                                                             \
-  bkt = ((hashv) & ((num_bkts) - 1));                                            \
+  bkt = ((hashv) & ((num_bkts) - 1U));                                           \
 } while(0)
 
 /* delete "delptr" from the hash table.
@@ -223,84 +238,84 @@ do {
  * copy the deletee pointer, then the latter references are via that
  * scratch pointer rather than through the repointed (users) symbol.
  */
-#define HASH_DELETE(hh,head,delptr)                                              \
+#define MPL_HASH_DELETE(hh,head,delptr)                                          \
 do {                                                                             \
-    unsigned _hd_bkt;                                                            \
-    struct UT_hash_handle *_hd_hh_del;                                           \
+    struct MPL_UT_hash_handle *_hd_hh_del;                                           \
     if ( ((delptr)->hh.prev == NULL) && ((delptr)->hh.next == NULL) )  {         \
-        uthash_free((head)->hh.tbl->buckets,                                     \
-                    (head)->hh.tbl->num_buckets*sizeof(struct UT_hash_bucket) ); \
-        HASH_BLOOM_FREE((head)->hh.tbl);                                         \
-        uthash_free((head)->hh.tbl, sizeof(UT_hash_table));                      \
+        MPL_uthash_free((head)->hh.tbl->buckets,                                 \
+                    (head)->hh.tbl->num_buckets*sizeof(struct MPL_UT_hash_bucket) ); \
+        MPL_HASH_BLOOM_FREE((head)->hh.tbl);                                     \
+        MPL_uthash_free((head)->hh.tbl, sizeof(MPL_UT_hash_table));              \
         head = NULL;                                                             \
     } else {                                                                     \
-        _hd_hh_del = &((delptr)->hh);                                            \
-        if ((delptr) == ELMT_FROM_HH((head)->hh.tbl,(head)->hh.tbl->tail)) {     \
+        unsigned _hd_bkt;                                                        \
+        _hd_hh_del = (MPL_UT_hash_handle*)&((delptr)->hh);                           \
+        if ((delptr) == MPL_ELMT_FROM_HH((head)->hh.tbl,(head)->hh.tbl->tail)) { \
             (head)->hh.tbl->tail =                                               \
-                (UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) +               \
+                (MPL_UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) +           \
                 (head)->hh.tbl->hho);                                            \
         }                                                                        \
-        if ((delptr)->hh.prev) {                                                 \
-            ((UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) +                  \
+        if ((delptr)->hh.prev != NULL) {                                         \
+            ((MPL_UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) +              \
                     (head)->hh.tbl->hho))->next = (delptr)->hh.next;             \
         } else {                                                                 \
-            DECLTYPE_ASSIGN(head,(delptr)->hh.next);                             \
+            MPL_DECLTYPE_ASSIGN(head,(delptr)->hh.next);                         \
         }                                                                        \
-        if (_hd_hh_del->next) {                                                  \
-            ((UT_hash_handle*)((ptrdiff_t)_hd_hh_del->next +                     \
+        if (_hd_hh_del->next != NULL) {                                          \
+            ((MPL_UT_hash_handle*)((ptrdiff_t)_hd_hh_del->next +                 \
                     (head)->hh.tbl->hho))->prev =                                \
                     _hd_hh_del->prev;                                            \
         }                                                                        \
-        HASH_TO_BKT( _hd_hh_del->hashv, (head)->hh.tbl->num_buckets, _hd_bkt);   \
-        HASH_DEL_IN_BKT(hh,(head)->hh.tbl->buckets[_hd_bkt], _hd_hh_del);        \
+        MPL_HASH_TO_BKT( _hd_hh_del->hashv, (head)->hh.tbl->num_buckets, _hd_bkt); \
+        MPL_HASH_DEL_IN_BKT(hh,(head)->hh.tbl->buckets[_hd_bkt], _hd_hh_del); \
         (head)->hh.tbl->num_items--;                                             \
     }                                                                            \
-    HASH_FSCK(hh,head);                                                          \
+    MPL_HASH_FSCK(hh,head);                                                      \
 } while (0)
 
 
 /* convenience forms of HASH_FIND/HASH_ADD/HASH_DEL */
-#define HASH_FIND_STR(head,findstr,out)                                          \
-    HASH_FIND(hh,head,findstr,strlen(findstr),out)
-#define HASH_ADD_STR(head,strfield,add)                                          \
-    HASH_ADD(hh,head,strfield,strlen(add->strfield),add)
-#define HASH_REPLACE_STR(head,strfield,add,replaced)                             \
-  HASH_REPLACE(hh,head,strfield,strlen(add->strfield),add,replaced)
-#define HASH_FIND_INT(head,findint,out)                                          \
-    HASH_FIND(hh,head,findint,sizeof(int),out)
-#define HASH_ADD_INT(head,intfield,add)                                          \
-    HASH_ADD(hh,head,intfield,sizeof(int),add)
-#define HASH_REPLACE_INT(head,intfield,add,replaced)                             \
-    HASH_REPLACE(hh,head,intfield,sizeof(int),add,replaced)
-#define HASH_FIND_PTR(head,findptr,out)                                          \
-    HASH_FIND(hh,head,findptr,sizeof(void *),out)
-#define HASH_ADD_PTR(head,ptrfield,add)                                          \
-    HASH_ADD(hh,head,ptrfield,sizeof(void *),add)
-#define HASH_REPLACE_PTR(head,ptrfield,add)                                      \
-    HASH_REPLACE(hh,head,ptrfield,sizeof(void *),add,replaced)
-#define HASH_DEL(head,delptr)                                                    \
-    HASH_DELETE(hh,head,delptr)
+#define MPL_HASH_FIND_STR(head,findstr,out)                                          \
+    MPL_HASH_FIND(hh,head,findstr,(unsigned)strlen(findstr),out)
+#define MPL_HASH_ADD_STR(head,strfield,add)                                          \
+    MPL_HASH_ADD(hh,head,strfield[0],(unsigned int)strlen(add->strfield),add)
+#define MPL_HASH_REPLACE_STR(head,strfield,add,replaced)                             \
+    MPL_HASH_REPLACE(hh,head,strfield[0],(unsigned)strlen(add->strfield),add,replaced)
+#define MPL_HASH_FIND_INT(head,findint,out)                                          \
+    MPL_HASH_FIND(hh,head,findint,sizeof(int),out)
+#define MPL_HASH_ADD_INT(head,intfield,add)                                          \
+    MPL_HASH_ADD(hh,head,intfield,sizeof(int),add)
+#define MPL_HASH_REPLACE_INT(head,intfield,add,replaced)                             \
+    MPL_HASH_REPLACE(hh,head,intfield,sizeof(int),add,replaced)
+#define MPL_HASH_FIND_PTR(head,findptr,out)                                          \
+    MPL_HASH_FIND(hh,head,findptr,sizeof(void *),out)
+#define MPL_HASH_ADD_PTR(head,ptrfield,add)                                          \
+    MPL_HASH_ADD(hh,head,ptrfield,sizeof(void *),add)
+#define MPL_HASH_REPLACE_PTR(head,ptrfield,add,replaced)                             \
+    MPL_HASH_REPLACE(hh,head,ptrfield,sizeof(void *),add,replaced)
+#define MPL_HASH_DEL(head,delptr)                                                    \
+    MPL_HASH_DELETE(hh,head,delptr)
 
 /* HASH_FSCK checks hash integrity on every add/delete when HASH_DEBUG is defined.
  * This is for uthash developer only; it compiles away if HASH_DEBUG isn't defined.
  */
-#ifdef HASH_DEBUG
-#define HASH_OOPS(...) do { fprintf(stderr,__VA_ARGS__); exit(-1); } while (0)
-#define HASH_FSCK(hh,head)                                                       \
+#ifdef MPL_HASH_DEBUG
+#define MPL_HASH_OOPS(...) do { fprintf(stderr,__VA_ARGS__); exit(-1); } while (0)
+#define MPL_HASH_FSCK(hh,head)                                                       \
 do {                                                                             \
-    unsigned _bkt_i;                                                             \
-    unsigned _count, _bkt_count;                                                 \
-    char *_prev;                                                                 \
-    struct UT_hash_handle *_thh;                                                 \
+    struct MPL_UT_hash_handle *_thh;                                                 \
     if (head) {                                                                  \
+        unsigned _bkt_i;                                                         \
+        unsigned _count;                                                         \
+        char *_prev;                                                             \
         _count = 0;                                                              \
         for( _bkt_i = 0; _bkt_i < (head)->hh.tbl->num_buckets; _bkt_i++) {       \
-            _bkt_count = 0;                                                      \
+            unsigned _bkt_count = 0;                                             \
             _thh = (head)->hh.tbl->buckets[_bkt_i].hh_head;                      \
             _prev = NULL;                                                        \
             while (_thh) {                                                       \
                if (_prev != (char*)(_thh->hh_prev)) {                            \
-                   HASH_OOPS("invalid hh_prev %p, actual %p\n",                  \
+                   MPL_HASH_OOPS("invalid hh_prev %p, actual %p\n",                  \
                     _thh->hh_prev, _prev );                                      \
                }                                                                 \
                _bkt_count++;                                                     \
@@ -309,12 +324,12 @@ do {
             }                                                                    \
             _count += _bkt_count;                                                \
             if ((head)->hh.tbl->buckets[_bkt_i].count !=  _bkt_count) {          \
-               HASH_OOPS("invalid bucket count %d, actual %d\n",                 \
+               MPL_HASH_OOPS("invalid bucket count %u, actual %u\n",                 \
                 (head)->hh.tbl->buckets[_bkt_i].count, _bkt_count);              \
             }                                                                    \
         }                                                                        \
         if (_count != (head)->hh.tbl->num_items) {                               \
-            HASH_OOPS("invalid hh item count %d, actual %d\n",                   \
+            MPL_HASH_OOPS("invalid hh item count %u, actual %u\n",                   \
                 (head)->hh.tbl->num_items, _count );                             \
         }                                                                        \
         /* traverse hh in app order; check next/prev integrity, count */         \
@@ -324,81 +339,86 @@ do {
         while (_thh) {                                                           \
            _count++;                                                             \
            if (_prev !=(char*)(_thh->prev)) {                                    \
-              HASH_OOPS("invalid prev %p, actual %p\n",                          \
+              MPL_HASH_OOPS("invalid prev %p, actual %p\n",                          \
                     _thh->prev, _prev );                                         \
            }                                                                     \
-           _prev = (char*)ELMT_FROM_HH((head)->hh.tbl, _thh);                    \
-           _thh = ( _thh->next ?  (UT_hash_handle*)((char*)(_thh->next) +        \
+           _prev = (char*)MPL_ELMT_FROM_HH((head)->hh.tbl, _thh);                    \
+           _thh = ( _thh->next ?  (MPL_UT_hash_handle*)((char*)(_thh->next) +        \
                                   (head)->hh.tbl->hho) : NULL );                 \
         }                                                                        \
         if (_count != (head)->hh.tbl->num_items) {                               \
-            HASH_OOPS("invalid app item count %d, actual %d\n",                  \
+            MPL_HASH_OOPS("invalid app item count %u, actual %u\n",                  \
                 (head)->hh.tbl->num_items, _count );                             \
         }                                                                        \
     }                                                                            \
 } while (0)
 #else
-#define HASH_FSCK(hh,head)
+#define MPL_HASH_FSCK(hh,head)
 #endif
 
 /* When compiled with -DHASH_EMIT_KEYS, length-prefixed keys are emitted to
  * the descriptor to which this macro is defined for tuning the hash function.
  * The app can #include <unistd.h> to get the prototype for write(2). */
-#ifdef HASH_EMIT_KEYS
-#define HASH_EMIT_KEY(hh,head,keyptr,fieldlen)                                   \
+#ifdef MPL_HASH_EMIT_KEYS
+#define MPL_HASH_EMIT_KEY(hh,head,keyptr,fieldlen)                                   \
 do {                                                                             \
     unsigned _klen = fieldlen;                                                   \
-    write(HASH_EMIT_KEYS, &_klen, sizeof(_klen));                                \
-    write(HASH_EMIT_KEYS, keyptr, fieldlen);                                     \
+    write(MPL_HASH_EMIT_KEYS, &_klen, sizeof(_klen));                                \
+    write(MPL_HASH_EMIT_KEYS, keyptr, (unsigned long)fieldlen);                      \
 } while (0)
 #else
-#define HASH_EMIT_KEY(hh,head,keyptr,fieldlen)
+#define MPL_HASH_EMIT_KEY(hh,head,keyptr,fieldlen)
 #endif
 
 /* default to Jenkin's hash unless overridden e.g. DHASH_FUNCTION=HASH_SAX */
-#ifdef HASH_FUNCTION
-#define HASH_FCN HASH_FUNCTION
+#ifdef MPL_HASH_FUNCTION
+#define MPL_HASH_FCN MPL_HASH_FUNCTION
 #else
-#define HASH_FCN HASH_JEN
+#define MPL_HASH_FCN MPL_HASH_JEN
 #endif
 
-/* The Bernstein hash function, used in Perl prior to v5.6 */
-#define HASH_BER(key,keylen,num_bkts,hashv,bkt)                                  \
+/* The Bernstein hash function, used in Perl prior to v5.6. Note (x<<5+x)=x*33. */
+#define MPL_HASH_BER(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
-  unsigned _hb_keylen=keylen;                                                    \
-  char *_hb_key=(char*)(key);                                                    \
+  unsigned _hb_keylen=(unsigned)keylen;                                          \
+  const unsigned char *_hb_key=(const unsigned char*)(key);                      \
   (hashv) = 0;                                                                   \
-  while (_hb_keylen--)  { (hashv) = ((hashv) * 33) + *_hb_key++; }               \
-  bkt = (hashv) & (num_bkts-1);                                                  \
+  while (_hb_keylen-- != 0U) {                                                   \
+      (hashv) = (((hashv) << 5) + (hashv)) + *_hb_key++;                         \
+  }                                                                              \
+  bkt = (hashv) & (num_bkts-1U);                                                 \
 } while (0)
 
 
 /* SAX/FNV/OAT/JEN hash functions are macro variants of those listed at
  * http://eternallyconfuzzled.com/tuts/algorithms/jsw_tut_hashing.aspx */
-#define HASH_SAX(key,keylen,num_bkts,hashv,bkt)                                  \
+#define MPL_HASH_SAX(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
   unsigned _sx_i;                                                                \
-  char *_hs_key=(char*)(key);                                                    \
+  const unsigned char *_hs_key=(const unsigned char*)(key);                      \
   hashv = 0;                                                                     \
-  for(_sx_i=0; _sx_i < keylen; _sx_i++)                                          \
+  for(_sx_i=0; _sx_i < keylen; _sx_i++) {                                        \
       hashv ^= (hashv << 5) + (hashv >> 2) + _hs_key[_sx_i];                     \
-  bkt = hashv & (num_bkts-1);                                                    \
+  }                                                                              \
+  bkt = hashv & (num_bkts-1U);                                                   \
 } while (0)
-
-#define HASH_FNV(key,keylen,num_bkts,hashv,bkt)                                  \
+/* FNV-1a variation */
+#define MPL_HASH_FNV(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
   unsigned _fn_i;                                                                \
-  char *_hf_key=(char*)(key);                                                    \
-  hashv = 2166136261UL;                                                          \
-  for(_fn_i=0; _fn_i < keylen; _fn_i++)                                          \
-      hashv = (hashv * 16777619) ^ _hf_key[_fn_i];                               \
-  bkt = hashv & (num_bkts-1);                                                    \
+  const unsigned char *_hf_key=(const unsigned char*)(key);                      \
+  hashv = 2166136261U;                                                           \
+  for(_fn_i=0; _fn_i < keylen; _fn_i++) {                                        \
+      hashv = hashv ^ _hf_key[_fn_i];                                            \
+      hashv = hashv * 16777619U;                                                 \
+  }                                                                              \
+  bkt = hashv & (num_bkts-1U);                                                   \
 } while(0)
 
-#define HASH_OAT(key,keylen,num_bkts,hashv,bkt)                                  \
+#define MPL_HASH_OAT(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
   unsigned _ho_i;                                                                \
-  char *_ho_key=(char*)(key);                                                    \
+  const unsigned char *_ho_key=(const unsigned char*)(key);                      \
   hashv = 0;                                                                     \
   for(_ho_i=0; _ho_i < keylen; _ho_i++) {                                        \
       hashv += _ho_key[_ho_i];                                                   \
@@ -408,10 +428,10 @@ do {
   hashv += (hashv << 3);                                                         \
   hashv ^= (hashv >> 11);                                                        \
   hashv += (hashv << 15);                                                        \
-  bkt = hashv & (num_bkts-1);                                                    \
+  bkt = hashv & (num_bkts-1U);                                                   \
 } while(0)
 
-#define HASH_JEN_MIX(a,b,c)                                                      \
+#define MPL_HASH_JEN_MIX(a,b,c)                                                      \
 do {                                                                             \
   a -= b; a -= c; a ^= ( c >> 13 );                                              \
   b -= c; b -= a; b ^= ( a << 8 );                                               \
@@ -424,14 +444,14 @@ do {
   c -= a; c -= b; c ^= ( b >> 15 );                                              \
 } while (0)
 
-#define HASH_JEN(key,keylen,num_bkts,hashv,bkt)                                  \
+#define MPL_HASH_JEN(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
   unsigned _hj_i,_hj_j,_hj_k;                                                    \
-  unsigned char *_hj_key=(unsigned char*)(key);                                  \
-  hashv = 0xfeedbeef;                                                            \
-  _hj_i = _hj_j = 0x9e3779b9;                                                    \
-  _hj_k = (unsigned)keylen;                                                      \
-  while (_hj_k >= 12) {                                                          \
+  unsigned const char *_hj_key=(unsigned const char*)(key);                      \
+  hashv = 0xfeedbeefu;                                                           \
+  _hj_i = _hj_j = 0x9e3779b9u;                                                   \
+  _hj_k = (unsigned)(keylen);                                                    \
+  while (_hj_k >= 12U) {                                                         \
     _hj_i +=    (_hj_key[0] + ( (unsigned)_hj_key[1] << 8 )                      \
         + ( (unsigned)_hj_key[2] << 16 )                                         \
         + ( (unsigned)_hj_key[3] << 24 ) );                                      \
@@ -442,27 +462,27 @@ do {
         + ( (unsigned)_hj_key[10] << 16 )                                        \
         + ( (unsigned)_hj_key[11] << 24 ) );                                     \
                                                                                  \
-     HASH_JEN_MIX(_hj_i, _hj_j, hashv);                                          \
+     MPL_HASH_JEN_MIX(_hj_i, _hj_j, hashv);                                          \
                                                                                  \
      _hj_key += 12;                                                              \
-     _hj_k -= 12;                                                                \
+     _hj_k -= 12U;                                                               \
   }                                                                              \
-  hashv += keylen;                                                               \
+  hashv += (unsigned)(keylen);                                                   \
   switch ( _hj_k ) {                                                             \
-     case 11: hashv += ( (unsigned)_hj_key[10] << 24 );                          \
-     case 10: hashv += ( (unsigned)_hj_key[9] << 16 );                           \
-     case 9:  hashv += ( (unsigned)_hj_key[8] << 8 );                            \
-     case 8:  _hj_j += ( (unsigned)_hj_key[7] << 24 );                           \
-     case 7:  _hj_j += ( (unsigned)_hj_key[6] << 16 );                           \
-     case 6:  _hj_j += ( (unsigned)_hj_key[5] << 8 );                            \
-     case 5:  _hj_j += _hj_key[4];                                               \
-     case 4:  _hj_i += ( (unsigned)_hj_key[3] << 24 );                           \
-     case 3:  _hj_i += ( (unsigned)_hj_key[2] << 16 );                           \
-     case 2:  _hj_i += ( (unsigned)_hj_key[1] << 8 );                            \
+     case 11: hashv += ( (unsigned)_hj_key[10] << 24 ); /* FALLTHROUGH */        \
+     case 10: hashv += ( (unsigned)_hj_key[9] << 16 );  /* FALLTHROUGH */        \
+     case 9:  hashv += ( (unsigned)_hj_key[8] << 8 );   /* FALLTHROUGH */        \
+     case 8:  _hj_j += ( (unsigned)_hj_key[7] << 24 );  /* FALLTHROUGH */        \
+     case 7:  _hj_j += ( (unsigned)_hj_key[6] << 16 );  /* FALLTHROUGH */        \
+     case 6:  _hj_j += ( (unsigned)_hj_key[5] << 8 );   /* FALLTHROUGH */        \
+     case 5:  _hj_j += _hj_key[4];                      /* FALLTHROUGH */        \
+     case 4:  _hj_i += ( (unsigned)_hj_key[3] << 24 );  /* FALLTHROUGH */        \
+     case 3:  _hj_i += ( (unsigned)_hj_key[2] << 16 );  /* FALLTHROUGH */        \
+     case 2:  _hj_i += ( (unsigned)_hj_key[1] << 8 );   /* FALLTHROUGH */        \
      case 1:  _hj_i += _hj_key[0];                                               \
   }                                                                              \
-  HASH_JEN_MIX(_hj_i, _hj_j, hashv);                                             \
-  bkt = hashv & (num_bkts-1);                                                    \
+  MPL_HASH_JEN_MIX(_hj_i, _hj_j, hashv);                                             \
+  bkt = hashv & (num_bkts-1U);                                                   \
 } while(0)
 
 /* The Paul Hsieh hash function */
@@ -476,21 +496,21 @@ do {
 #define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)             \
                        +(uint32_t)(((const uint8_t *)(d))[0]) )
 #endif
-#define HASH_SFH(key,keylen,num_bkts,hashv,bkt)                                  \
+#define MPL_HASH_SFH(key,keylen,num_bkts,hashv,bkt)                                  \
 do {                                                                             \
-  unsigned char *_sfh_key=(unsigned char*)(key);                                 \
-  uint32_t _sfh_tmp, _sfh_len = keylen;                                          \
+  unsigned const char *_sfh_key=(unsigned const char*)(key);                     \
+  uint32_t _sfh_tmp, _sfh_len = (uint32_t)keylen;                                \
                                                                                  \
-  int _sfh_rem = _sfh_len & 3;                                                   \
+  unsigned _sfh_rem = _sfh_len & 3U;                                             \
   _sfh_len >>= 2;                                                                \
-  hashv = 0xcafebabe;                                                            \
+  hashv = 0xcafebabeu;                                                           \
                                                                                  \
   /* Main loop */                                                                \
-  for (;_sfh_len > 0; _sfh_len--) {                                              \
+  for (;_sfh_len > 0U; _sfh_len--) {                                             \
     hashv    += get16bits (_sfh_key);                                            \
-    _sfh_tmp       = (uint32_t)(get16bits (_sfh_key+2)) << 11  ^ hashv;          \
+    _sfh_tmp  = ((uint32_t)(get16bits (_sfh_key+2)) << 11) ^ hashv;              \
     hashv     = (hashv << 16) ^ _sfh_tmp;                                        \
-    _sfh_key += 2*sizeof (uint16_t);                                             \
+    _sfh_key += 2U*sizeof (uint16_t);                                            \
     hashv    += hashv >> 11;                                                     \
   }                                                                              \
                                                                                  \
@@ -498,7 +518,7 @@ do {
   switch (_sfh_rem) {                                                            \
     case 3: hashv += get16bits (_sfh_key);                                       \
             hashv ^= hashv << 16;                                                \
-            hashv ^= (uint32_t)(_sfh_key[sizeof (uint16_t)] << 18);              \
+            hashv ^= (uint32_t)(_sfh_key[sizeof (uint16_t)]) << 18;              \
             hashv += hashv >> 11;                                                \
             break;                                                               \
     case 2: hashv += get16bits (_sfh_key);                                       \
@@ -517,10 +537,10 @@ do {
     hashv += hashv >> 17;                                                        \
     hashv ^= hashv << 25;                                                        \
     hashv += hashv >> 6;                                                         \
-    bkt = hashv & (num_bkts-1);                                                  \
+    bkt = hashv & (num_bkts-1U);                                                 \
 } while(0)
 
-#ifdef HASH_USING_NO_STRICT_ALIASING
+#ifdef MPL_HASH_USING_NO_STRICT_ALIASING
 /* The MurmurHash exploits some CPU's (x86,x86_64) tolerance for unaligned reads.
  * For other types of CPU's (e.g. Sparc) an unaligned read causes a bus error.
  * MurmurHash uses the faster approach only on CPU's where we know it's safe.
@@ -531,118 +551,118 @@ do {
  *   cc -## a.c (where a.c is a simple test file)   (Sun Studio)
  */
 #if (defined(__i386__) || defined(__x86_64__)  || defined(_M_IX86))
-#define MUR_GETBLOCK(p,i) p[i]
+#define MPL_MUR_GETBLOCK(p,i) p[i]
 #else /* non intel */
-#define MUR_PLUS0_ALIGNED(p) (((unsigned long)p & 0x3) == 0)
-#define MUR_PLUS1_ALIGNED(p) (((unsigned long)p & 0x3) == 1)
-#define MUR_PLUS2_ALIGNED(p) (((unsigned long)p & 0x3) == 2)
-#define MUR_PLUS3_ALIGNED(p) (((unsigned long)p & 0x3) == 3)
-#define WP(p) ((uint32_t*)((unsigned long)(p) & ~3UL))
+#define MPL_MUR_PLUS0_ALIGNED(p) (((unsigned long)p & 3UL) == 0UL)
+#define MPL_MUR_PLUS1_ALIGNED(p) (((unsigned long)p & 3UL) == 1UL)
+#define MPL_MUR_PLUS2_ALIGNED(p) (((unsigned long)p & 3UL) == 2UL)
+#define MPL_MUR_PLUS3_ALIGNED(p) (((unsigned long)p & 3UL) == 3UL)
+#define MPL_WP(p) ((uint32_t*)((unsigned long)(p) & ~3UL))
 #if (defined(__BIG_ENDIAN__) || defined(SPARC) || defined(__ppc__) || defined(__ppc64__))
-#define MUR_THREE_ONE(p) ((((*WP(p))&0x00ffffff) << 8) | (((*(WP(p)+1))&0xff000000) >> 24))
-#define MUR_TWO_TWO(p)   ((((*WP(p))&0x0000ffff) <<16) | (((*(WP(p)+1))&0xffff0000) >> 16))
-#define MUR_ONE_THREE(p) ((((*WP(p))&0x000000ff) <<24) | (((*(WP(p)+1))&0xffffff00) >>  8))
+#define MPL_MUR_THREE_ONE(p) ((((*WP(p))&0x00ffffff) << 8) | (((*(WP(p)+1))&0xff000000) >> 24))
+#define MPL_MUR_TWO_TWO(p)   ((((*WP(p))&0x0000ffff) <<16) | (((*(WP(p)+1))&0xffff0000) >> 16))
+#define MPL_MUR_ONE_THREE(p) ((((*WP(p))&0x000000ff) <<24) | (((*(WP(p)+1))&0xffffff00) >>  8))
 #else /* assume little endian non-intel */
-#define MUR_THREE_ONE(p) ((((*WP(p))&0xffffff00) >> 8) | (((*(WP(p)+1))&0x000000ff) << 24))
-#define MUR_TWO_TWO(p)   ((((*WP(p))&0xffff0000) >>16) | (((*(WP(p)+1))&0x0000ffff) << 16))
-#define MUR_ONE_THREE(p) ((((*WP(p))&0xff000000) >>24) | (((*(WP(p)+1))&0x00ffffff) <<  8))
+#define MPL_MUR_THREE_ONE(p) ((((*WP(p))&0xffffff00) >> 8) | (((*(WP(p)+1))&0x000000ff) << 24))
+#define MPL_MUR_TWO_TWO(p)   ((((*WP(p))&0xffff0000) >>16) | (((*(WP(p)+1))&0x0000ffff) << 16))
+#define MPL_MUR_ONE_THREE(p) ((((*WP(p))&0xff000000) >>24) | (((*(WP(p)+1))&0x00ffffff) <<  8))
 #endif
-#define MUR_GETBLOCK(p,i) (MUR_PLUS0_ALIGNED(p) ? ((p)[i]) :           \
-                            (MUR_PLUS1_ALIGNED(p) ? MUR_THREE_ONE(p) : \
-                             (MUR_PLUS2_ALIGNED(p) ? MUR_TWO_TWO(p) :  \
-                                                      MUR_ONE_THREE(p))))
+#define MPL_MUR_GETBLOCK(p,i) (MPL_MUR_PLUS0_ALIGNED(p) ? ((p)[i]) :           \
+                            (MPL_MUR_PLUS1_ALIGNED(p) ? MPL_MUR_THREE_ONE(p) : \
+                             (MPL_MUR_PLUS2_ALIGNED(p) ? MPL_MUR_TWO_TWO(p) :  \
+                                                      MPL_MUR_ONE_THREE(p))))
 #endif
-#define MUR_ROTL32(x,r) (((x) << (r)) | ((x) >> (32 - (r))))
-#define MUR_FMIX(_h) \
+#define MPL_MUR_ROTL32(x,r) (((x) << (r)) | ((x) >> (32 - (r))))
+#define MPL_MUR_FMIX(_h) \
 do {                 \
   _h ^= _h >> 16;    \
-  _h *= 0x85ebca6b;  \
+  _h *= 0x85ebca6bu; \
   _h ^= _h >> 13;    \
-  _h *= 0xc2b2ae35l; \
+  _h *= 0xc2b2ae35u; \
   _h ^= _h >> 16;    \
 } while(0)
 
-#define HASH_MUR(key,keylen,num_bkts,hashv,bkt)                        \
+#define MPL_HASH_MUR(key,keylen,num_bkts,hashv,bkt)                        \
 do {                                                                   \
   const uint8_t *_mur_data = (const uint8_t*)(key);                    \
-  const int _mur_nblocks = (keylen) / 4;                               \
-  uint32_t _mur_h1 = 0xf88D5353;                                       \
-  uint32_t _mur_c1 = 0xcc9e2d51;                                       \
-  uint32_t _mur_c2 = 0x1b873593;                                       \
+  const int _mur_nblocks = (int)(keylen) / 4;                          \
+  uint32_t _mur_h1 = 0xf88D5353u;                                      \
+  uint32_t _mur_c1 = 0xcc9e2d51u;                                      \
+  uint32_t _mur_c2 = 0x1b873593u;                                      \
   uint32_t _mur_k1 = 0;                                                \
   const uint8_t *_mur_tail;                                            \
-  const uint32_t *_mur_blocks = (const uint32_t*)(_mur_data+_mur_nblocks*4); \
+  const uint32_t *_mur_blocks = (const uint32_t*)(_mur_data+(_mur_nblocks*4)); \
   int _mur_i;                                                          \
-  for(_mur_i = -_mur_nblocks; _mur_i; _mur_i++) {                      \
-    _mur_k1 = MUR_GETBLOCK(_mur_blocks,_mur_i);                        \
+  for(_mur_i = -_mur_nblocks; _mur_i!=0; _mur_i++) {                   \
+    _mur_k1 = MPL_MUR_GETBLOCK(_mur_blocks,_mur_i);                        \
     _mur_k1 *= _mur_c1;                                                \
-    _mur_k1 = MUR_ROTL32(_mur_k1,15);                                  \
+    _mur_k1 = MPL_MUR_ROTL32(_mur_k1,15);                                  \
     _mur_k1 *= _mur_c2;                                                \
                                                                        \
     _mur_h1 ^= _mur_k1;                                                \
-    _mur_h1 = MUR_ROTL32(_mur_h1,13);                                  \
-    _mur_h1 = _mur_h1*5+0xe6546b64;                                    \
+    _mur_h1 = MPL_MUR_ROTL32(_mur_h1,13);                                  \
+    _mur_h1 = (_mur_h1*5U) + 0xe6546b64u;                              \
   }                                                                    \
-  _mur_tail = (const uint8_t*)(_mur_data + _mur_nblocks*4);            \
+  _mur_tail = (const uint8_t*)(_mur_data + (_mur_nblocks*4));          \
   _mur_k1=0;                                                           \
-  switch((keylen) & 3) {                                               \
-    case 3: _mur_k1 ^= _mur_tail[2] << 16;                             \
-    case 2: _mur_k1 ^= _mur_tail[1] << 8;                              \
-    case 1: _mur_k1 ^= _mur_tail[0];                                   \
+  switch((keylen) & 3U) {                                              \
+    case 3: _mur_k1 ^= (uint32_t)_mur_tail[2] << 16; /* FALLTHROUGH */ \
+    case 2: _mur_k1 ^= (uint32_t)_mur_tail[1] << 8;  /* FALLTHROUGH */ \
+    case 1: _mur_k1 ^= (uint32_t)_mur_tail[0];                         \
     _mur_k1 *= _mur_c1;                                                \
-    _mur_k1 = MUR_ROTL32(_mur_k1,15);                                  \
+    _mur_k1 = MPL_MUR_ROTL32(_mur_k1,15);                                  \
     _mur_k1 *= _mur_c2;                                                \
     _mur_h1 ^= _mur_k1;                                                \
   }                                                                    \
-  _mur_h1 ^= (keylen);                                                 \
-  MUR_FMIX(_mur_h1);                                                   \
+  _mur_h1 ^= (uint32_t)(keylen);                                       \
+  MPL_MUR_FMIX(_mur_h1);                                                   \
   hashv = _mur_h1;                                                     \
-  bkt = hashv & (num_bkts-1);                                          \
+  bkt = hashv & (num_bkts-1U);                                         \
 } while(0)
 #endif  /* HASH_USING_NO_STRICT_ALIASING */
 
 /* key comparison function; return 0 if keys equal */
-#define HASH_KEYCMP(a,b,len) memcmp(a,b,len)
+#define MPL_HASH_KEYCMP(a,b,len) memcmp(a,b,(unsigned long)(len))
 
 /* iterate over items in a known bucket to find desired item */
-#define HASH_FIND_IN_BKT(tbl,hh,head,keyptr,keylen_in,out)                       \
+#define MPL_HASH_FIND_IN_BKT(tbl,hh,head,keyptr,keylen_in,out)                       \
 do {                                                                             \
- if (head.hh_head) DECLTYPE_ASSIGN(out,ELMT_FROM_HH(tbl,head.hh_head));          \
- else out=NULL;                                                                  \
- while (out) {                                                                   \
-    if ((out)->hh.keylen == keylen_in) {                                           \
-        if ((HASH_KEYCMP((out)->hh.key,keyptr,keylen_in)) == 0) break;             \
+ if (head.hh_head != NULL) { MPL_DECLTYPE_ASSIGN(out,MPL_ELMT_FROM_HH(tbl,head.hh_head)); } \
+ else { out=NULL; }                                                              \
+ while (out != NULL) {                                                           \
+    if ((out)->hh.keylen == (keylen_in)) {                                       \
+        if ((MPL_HASH_KEYCMP((out)->hh.key,keyptr,keylen_in)) == 0) { break; }         \
     }                                                                            \
-    if ((out)->hh.hh_next) DECLTYPE_ASSIGN(out,ELMT_FROM_HH(tbl,(out)->hh.hh_next)); \
-    else out = NULL;                                                             \
+    if ((out)->hh.hh_next != NULL) { MPL_DECLTYPE_ASSIGN(out,MPL_ELMT_FROM_HH(tbl,(out)->hh.hh_next)); } \
+    else { out = NULL; }                                                         \
  }                                                                               \
 } while(0)
 
 /* add an item to a bucket  */
-#define HASH_ADD_TO_BKT(head,addhh)                                              \
+#define MPL_HASH_ADD_TO_BKT(head,addhh)                                              \
 do {                                                                             \
  head.count++;                                                                   \
  (addhh)->hh_next = head.hh_head;                                                \
  (addhh)->hh_prev = NULL;                                                        \
- if (head.hh_head) { (head).hh_head->hh_prev = (addhh); }                        \
+ if (head.hh_head != NULL) { (head).hh_head->hh_prev = (addhh); }                \
  (head).hh_head=addhh;                                                           \
- if (head.count >= ((head.expand_mult+1) * HASH_BKT_CAPACITY_THRESH)             \
-     && (addhh)->tbl->noexpand != 1) {                                           \
-       HASH_EXPAND_BUCKETS((addhh)->tbl);                                        \
+ if ((head.count >= ((head.expand_mult+1U) * MPL_HASH_BKT_CAPACITY_THRESH))          \
+     && ((addhh)->tbl->noexpand != 1U)) {                                        \
+       MPL_HASH_EXPAND_BUCKETS((addhh)->tbl);                                        \
  }                                                                               \
 } while(0)
 
 /* remove an item from a given bucket */
-#define HASH_DEL_IN_BKT(hh,head,hh_del)                                          \
+#define MPL_HASH_DEL_IN_BKT(hh,head,hh_del)                                          \
     (head).count--;                                                              \
-    if ((head).hh_head == hh_del) {                                              \
-      (head).hh_head = hh_del->hh_next;                                          \
+    if ((head).hh_head == (MPL_UT_hash_handle*)hh_del) {          \
+        (head).hh_head = (MPL_UT_hash_handle*)hh_del->hh_next;                   \
     }                                                                            \
     if (hh_del->hh_prev) {                                                       \
-        hh_del->hh_prev->hh_next = hh_del->hh_next;                              \
+            hh_del->hh_prev->hh_next = hh_del->hh_next;                          \
     }                                                                            \
     if (hh_del->hh_next) {                                                       \
-        hh_del->hh_next->hh_prev = hh_del->hh_prev;                              \
+            hh_del->hh_next->hh_prev = hh_del->hh_prev;                          \
     }
 
 /* Bucket expansion has the effect of doubling the number of buckets
@@ -674,27 +694,27 @@ do {
  *      ceil(n/b) = (n>>lb) + ( (n & (b-1)) ? 1:0)
  *
  */
-#define HASH_EXPAND_BUCKETS(tbl)                                                 \
+#define MPL_HASH_EXPAND_BUCKETS(tbl)                                                 \
 do {                                                                             \
     unsigned _he_bkt;                                                            \
     unsigned _he_bkt_i;                                                          \
-    struct UT_hash_handle *_he_thh, *_he_hh_nxt;                                 \
-    UT_hash_bucket *_he_new_buckets, *_he_newbkt;                                \
-    _he_new_buckets = (UT_hash_bucket*)uthash_malloc(                            \
-             2 * tbl->num_buckets * sizeof(struct UT_hash_bucket));              \
-    if (!_he_new_buckets) { uthash_fatal( "out of memory"); }                    \
+    struct MPL_UT_hash_handle *_he_thh, *_he_hh_nxt;                                 \
+    MPL_UT_hash_bucket *_he_new_buckets, *_he_newbkt;                                \
+    _he_new_buckets = (MPL_UT_hash_bucket*)MPL_uthash_malloc(                            \
+             2UL * tbl->num_buckets * sizeof(struct MPL_UT_hash_bucket));            \
+    if (!_he_new_buckets) { MPL_uthash_fatal( "out of memory"); }                    \
     memset(_he_new_buckets, 0,                                                   \
-            2 * tbl->num_buckets * sizeof(struct UT_hash_bucket));               \
+            2UL * tbl->num_buckets * sizeof(struct MPL_UT_hash_bucket));             \
     tbl->ideal_chain_maxlen =                                                    \
-       (tbl->num_items >> (tbl->log2_num_buckets+1)) +                           \
-       ((tbl->num_items & ((tbl->num_buckets*2)-1)) ? 1 : 0);                    \
+       (tbl->num_items >> (tbl->log2_num_buckets+1U)) +                          \
+       (((tbl->num_items & ((tbl->num_buckets*2U)-1U)) != 0U) ? 1U : 0U);        \
     tbl->nonideal_items = 0;                                                     \
     for(_he_bkt_i = 0; _he_bkt_i < tbl->num_buckets; _he_bkt_i++)                \
     {                                                                            \
         _he_thh = tbl->buckets[ _he_bkt_i ].hh_head;                             \
-        while (_he_thh) {                                                        \
+        while (_he_thh != NULL) {                                                \
            _he_hh_nxt = _he_thh->hh_next;                                        \
-           HASH_TO_BKT( _he_thh->hashv, tbl->num_buckets*2, _he_bkt);            \
+           MPL_HASH_TO_BKT( _he_thh->hashv, tbl->num_buckets*2U, _he_bkt);       \
            _he_newbkt = &(_he_new_buckets[ _he_bkt ]);                           \
            if (++(_he_newbkt->count) > tbl->ideal_chain_maxlen) {                \
              tbl->nonideal_items++;                                              \
@@ -703,106 +723,114 @@ do {
            }                                                                     \
            _he_thh->hh_prev = NULL;                                              \
            _he_thh->hh_next = _he_newbkt->hh_head;                               \
-           if (_he_newbkt->hh_head) _he_newbkt->hh_head->hh_prev =               \
-                _he_thh;                                                         \
+           if (_he_newbkt->hh_head != NULL) { _he_newbkt->hh_head->hh_prev =     \
+                _he_thh; }                                                       \
            _he_newbkt->hh_head = _he_thh;                                        \
            _he_thh = _he_hh_nxt;                                                 \
         }                                                                        \
     }                                                                            \
-    uthash_free( tbl->buckets, tbl->num_buckets*sizeof(struct UT_hash_bucket) ); \
-    tbl->num_buckets *= 2;                                                       \
+    MPL_uthash_free( tbl->buckets, tbl->num_buckets*sizeof(struct MPL_UT_hash_bucket) ); \
+    tbl->num_buckets *= 2U;                                                      \
     tbl->log2_num_buckets++;                                                     \
     tbl->buckets = _he_new_buckets;                                              \
     tbl->ineff_expands = (tbl->nonideal_items > (tbl->num_items >> 1)) ?         \
-        (tbl->ineff_expands+1) : 0;                                              \
-    if (tbl->ineff_expands > 1) {                                                \
+        (tbl->ineff_expands+1U) : 0U;                                            \
+    if (tbl->ineff_expands > 1U) {                                               \
         tbl->noexpand=1;                                                         \
-        uthash_noexpand_fyi(tbl);                                                \
+        MPL_uthash_noexpand_fyi(tbl);                                                \
     }                                                                            \
-    uthash_expand_fyi(tbl);                                                      \
+    MPL_uthash_expand_fyi(tbl);                                                      \
 } while(0)
 
 
 /* This is an adaptation of Simon Tatham's O(n log(n)) mergesort */
 /* Note that HASH_SORT assumes the hash handle name to be hh.
  * HASH_SRT was added to allow the hash handle name to be passed in. */
-#define HASH_SORT(head,cmpfcn) HASH_SRT(hh,head,cmpfcn)
-#define HASH_SRT(hh,head,cmpfcn)                                                 \
+#define MPL_HASH_SORT(head,cmpfcn) MPL_HASH_SRT(hh,head,cmpfcn)
+#define MPL_HASH_SRT(hh,head,cmpfcn)                                                 \
 do {                                                                             \
   unsigned _hs_i;                                                                \
   unsigned _hs_looping,_hs_nmerges,_hs_insize,_hs_psize,_hs_qsize;               \
-  struct UT_hash_handle *_hs_p, *_hs_q, *_hs_e, *_hs_list, *_hs_tail;            \
-  if (head) {                                                                    \
+  struct MPL_UT_hash_handle *_hs_p, *_hs_q, *_hs_e, *_hs_list, *_hs_tail;            \
+  if (head != NULL) {                                                            \
       _hs_insize = 1;                                                            \
       _hs_looping = 1;                                                           \
       _hs_list = &((head)->hh);                                                  \
-      while (_hs_looping) {                                                      \
+      while (_hs_looping != 0U) {                                                \
           _hs_p = _hs_list;                                                      \
           _hs_list = NULL;                                                       \
           _hs_tail = NULL;                                                       \
           _hs_nmerges = 0;                                                       \
-          while (_hs_p) {                                                        \
+          while (_hs_p != NULL) {                                                \
               _hs_nmerges++;                                                     \
               _hs_q = _hs_p;                                                     \
               _hs_psize = 0;                                                     \
               for ( _hs_i = 0; _hs_i  < _hs_insize; _hs_i++ ) {                  \
                   _hs_psize++;                                                   \
-                  _hs_q = (UT_hash_handle*)((_hs_q->next) ?                      \
+                  _hs_q = (MPL_UT_hash_handle*)((_hs_q->next != NULL) ?              \
                           ((void*)((char*)(_hs_q->next) +                        \
                           (head)->hh.tbl->hho)) : NULL);                         \
-                  if (! (_hs_q) ) break;                                         \
+                  if (! (_hs_q) ) { break; }                                     \
               }                                                                  \
               _hs_qsize = _hs_insize;                                            \
-              while ((_hs_psize > 0) || ((_hs_qsize > 0) && _hs_q )) {           \
-                  if (_hs_psize == 0) {                                          \
+              while ((_hs_psize > 0U) || ((_hs_qsize > 0U) && (_hs_q != NULL))) {\
+                  if (_hs_psize == 0U) {                                         \
                       _hs_e = _hs_q;                                             \
-                      _hs_q = (UT_hash_handle*)((_hs_q->next) ?                  \
+                      _hs_q = (MPL_UT_hash_handle*)((_hs_q->next != NULL) ?          \
                               ((void*)((char*)(_hs_q->next) +                    \
                               (head)->hh.tbl->hho)) : NULL);                     \
                       _hs_qsize--;                                               \
-                  } else if ( (_hs_qsize == 0) || !(_hs_q) ) {                   \
+                  } else if ( (_hs_qsize == 0U) || (_hs_q == NULL) ) {           \
                       _hs_e = _hs_p;                                             \
-                      _hs_p = (UT_hash_handle*)((_hs_p->next) ?                  \
-                              ((void*)((char*)(_hs_p->next) +                    \
-                              (head)->hh.tbl->hho)) : NULL);                     \
+                      if (_hs_p != NULL){                                        \
+                        _hs_p = (MPL_UT_hash_handle*)((_hs_p->next != NULL) ?        \
+                                ((void*)((char*)(_hs_p->next) +                  \
+                                (head)->hh.tbl->hho)) : NULL);                   \
+                       }                                                         \
                       _hs_psize--;                                               \
                   } else if ((                                                   \
-                      cmpfcn(DECLTYPE(head)(ELMT_FROM_HH((head)->hh.tbl,_hs_p)), \
-                             DECLTYPE(head)(ELMT_FROM_HH((head)->hh.tbl,_hs_q))) \
+                      cmpfcn(MPL_DECLTYPE(head)(MPL_ELMT_FROM_HH((head)->hh.tbl,_hs_p)), \
+                             MPL_DECLTYPE(head)(MPL_ELMT_FROM_HH((head)->hh.tbl,_hs_q))) \
                              ) <= 0) {                                           \
                       _hs_e = _hs_p;                                             \
-                      _hs_p = (UT_hash_handle*)((_hs_p->next) ?                  \
-                              ((void*)((char*)(_hs_p->next) +                    \
-                              (head)->hh.tbl->hho)) : NULL);                     \
+                      if (_hs_p != NULL){                                        \
+                        _hs_p = (MPL_UT_hash_handle*)((_hs_p->next != NULL) ?        \
+                               ((void*)((char*)(_hs_p->next) +                   \
+                               (head)->hh.tbl->hho)) : NULL);                    \
+                       }                                                         \
                       _hs_psize--;                                               \
                   } else {                                                       \
                       _hs_e = _hs_q;                                             \
-                      _hs_q = (UT_hash_handle*)((_hs_q->next) ?                  \
+                      _hs_q = (MPL_UT_hash_handle*)((_hs_q->next != NULL) ?          \
                               ((void*)((char*)(_hs_q->next) +                    \
                               (head)->hh.tbl->hho)) : NULL);                     \
                       _hs_qsize--;                                               \
                   }                                                              \
-                  if ( _hs_tail ) {                                              \
-                      _hs_tail->next = ((_hs_e) ?                                \
-                            ELMT_FROM_HH((head)->hh.tbl,_hs_e) : NULL);          \
+                  if ( _hs_tail != NULL ) {                                      \
+                      _hs_tail->next = ((_hs_e != NULL) ?                        \
+                            MPL_ELMT_FROM_HH((head)->hh.tbl,_hs_e) : NULL);          \
                   } else {                                                       \
                       _hs_list = _hs_e;                                          \
                   }                                                              \
-                  _hs_e->prev = ((_hs_tail) ?                                    \
-                     ELMT_FROM_HH((head)->hh.tbl,_hs_tail) : NULL);              \
+                  if (_hs_e != NULL) {                                           \
+                  _hs_e->prev = ((_hs_tail != NULL) ?                            \
+                     MPL_ELMT_FROM_HH((head)->hh.tbl,_hs_tail) : NULL);              \
+                  }                                                              \
                   _hs_tail = _hs_e;                                              \
               }                                                                  \
               _hs_p = _hs_q;                                                     \
           }                                                                      \
-          _hs_tail->next = NULL;                                                 \
-          if ( _hs_nmerges <= 1 ) {                                              \
+          if (_hs_tail != NULL){                                                 \
+            _hs_tail->next = NULL;                                               \
+          }                                                                      \
+          if ( _hs_nmerges <= 1U ) {                                             \
               _hs_looping=0;                                                     \
               (head)->hh.tbl->tail = _hs_tail;                                   \
-              DECLTYPE_ASSIGN(head,ELMT_FROM_HH((head)->hh.tbl, _hs_list));      \
+              MPL_DECLTYPE_ASSIGN(head,MPL_ELMT_FROM_HH((head)->hh.tbl, _hs_list));      \
           }                                                                      \
-          _hs_insize *= 2;                                                       \
+          _hs_insize *= 2U;                                                      \
       }                                                                          \
-      HASH_FSCK(hh,head);                                                        \
+      MPL_HASH_FSCK(hh,head);                                                        \
  }                                                                               \
 } while (0)
 
@@ -811,34 +839,34 @@ do {
  * in both hashes. There is no copy of the items made; rather
  * they are added into the new hash through a secondary hash
  * hash handle that must be present in the structure. */
-#define HASH_SELECT(hh_dst, dst, hh_src, src, cond)                              \
+#define MPL_HASH_SELECT(hh_dst, dst, hh_src, src, cond)                              \
 do {                                                                             \
   unsigned _src_bkt, _dst_bkt;                                                   \
   void *_last_elt=NULL, *_elt;                                                   \
-  UT_hash_handle *_src_hh, *_dst_hh, *_last_elt_hh=NULL;                         \
+  MPL_UT_hash_handle *_src_hh, *_dst_hh, *_last_elt_hh=NULL;                         \
   ptrdiff_t _dst_hho = ((char*)(&(dst)->hh_dst) - (char*)(dst));                 \
-  if (src) {                                                                     \
+  if (src != NULL) {                                                             \
     for(_src_bkt=0; _src_bkt < (src)->hh_src.tbl->num_buckets; _src_bkt++) {     \
       for(_src_hh = (src)->hh_src.tbl->buckets[_src_bkt].hh_head;                \
-          _src_hh;                                                               \
+          _src_hh != NULL;                                                       \
           _src_hh = _src_hh->hh_next) {                                          \
-          _elt = ELMT_FROM_HH((src)->hh_src.tbl, _src_hh);                       \
+          _elt = MPL_ELMT_FROM_HH((src)->hh_src.tbl, _src_hh);                       \
           if (cond(_elt)) {                                                      \
-            _dst_hh = (UT_hash_handle*)(((char*)_elt) + _dst_hho);               \
+            _dst_hh = (MPL_UT_hash_handle*)(((char*)_elt) + _dst_hho);               \
             _dst_hh->key = _src_hh->key;                                         \
             _dst_hh->keylen = _src_hh->keylen;                                   \
             _dst_hh->hashv = _src_hh->hashv;                                     \
             _dst_hh->prev = _last_elt;                                           \
             _dst_hh->next = NULL;                                                \
-            if (_last_elt_hh) { _last_elt_hh->next = _elt; }                     \
-            if (!dst) {                                                          \
-              DECLTYPE_ASSIGN(dst,_elt);                                         \
-              HASH_MAKE_TABLE(hh_dst,dst);                                       \
+            if (_last_elt_hh != NULL) { _last_elt_hh->next = _elt; }             \
+            if (dst == NULL) {                                                   \
+              MPL_DECLTYPE_ASSIGN(dst,_elt);                                         \
+              MPL_HASH_MAKE_TABLE(hh_dst,dst);                                       \
             } else {                                                             \
               _dst_hh->tbl = (dst)->hh_dst.tbl;                                  \
             }                                                                    \
-            HASH_TO_BKT(_dst_hh->hashv, _dst_hh->tbl->num_buckets, _dst_bkt);    \
-            HASH_ADD_TO_BKT(_dst_hh->tbl->buckets[_dst_bkt],_dst_hh);            \
+            MPL_HASH_TO_BKT(_dst_hh->hashv, _dst_hh->tbl->num_buckets, _dst_bkt);    \
+            MPL_HASH_ADD_TO_BKT(_dst_hh->tbl->buckets[_dst_bkt],_dst_hh);            \
             (dst)->hh_dst.tbl->num_items++;                                      \
             _last_elt = _elt;                                                    \
             _last_elt_hh = _dst_hh;                                              \
@@ -846,42 +874,43 @@ do {
       }                                                                          \
     }                                                                            \
   }                                                                              \
-  HASH_FSCK(hh_dst,dst);                                                         \
+  MPL_HASH_FSCK(hh_dst,dst);                                                         \
 } while (0)
 
-#define HASH_CLEAR(hh,head)                                                      \
+#define MPL_HASH_CLEAR(hh,head)                                                      \
 do {                                                                             \
-  if (head) {                                                                    \
-    uthash_free((head)->hh.tbl->buckets,                                         \
-                (head)->hh.tbl->num_buckets*sizeof(struct UT_hash_bucket));      \
-    HASH_BLOOM_FREE((head)->hh.tbl);                                             \
-    uthash_free((head)->hh.tbl, sizeof(UT_hash_table));                          \
+  if (head != NULL) {                                                            \
+    MPL_uthash_free((head)->hh.tbl->buckets,                                         \
+                (head)->hh.tbl->num_buckets*sizeof(struct MPL_UT_hash_bucket));      \
+    MPL_HASH_BLOOM_FREE((head)->hh.tbl);                                             \
+    MPL_uthash_free((head)->hh.tbl, sizeof(MPL_UT_hash_table));                          \
     (head)=NULL;                                                                 \
   }                                                                              \
 } while(0)
 
-#define HASH_OVERHEAD(hh,head)                                                   \
- (size_t)((((head)->hh.tbl->num_items   * sizeof(UT_hash_handle))   +            \
-           ((head)->hh.tbl->num_buckets * sizeof(UT_hash_bucket))   +            \
-            (sizeof(UT_hash_table))                                 +            \
-            (HASH_BLOOM_BYTELEN)))
-
-#ifdef NO_DECLTYPE
-#define HASH_ITER(hh,head,el,tmp)                                                \
-for((el)=(head), (*(char**)(&(tmp)))=(char*)((head)?(head)->hh.next:NULL);       \
-  el; (el)=(tmp),(*(char**)(&(tmp)))=(char*)((tmp)?(tmp)->hh.next:NULL))
+#define MPL_HASH_OVERHEAD(hh,head)                                                   \
+ ((head != NULL) ? (                                                             \
+ (size_t)(((head)->hh.tbl->num_items   * sizeof(MPL_UT_hash_handle))   +             \
+          ((head)->hh.tbl->num_buckets * sizeof(MPL_UT_hash_bucket))   +             \
+           sizeof(MPL_UT_hash_table)                                   +             \
+           (MPL_HASH_BLOOM_BYTELEN))) : 0U)
+
+#ifdef MPL_NO_DECLTYPE
+#define MPL_HASH_ITER(hh,head,el,tmp)                                                \
+for(((el)=(head)), ((*(char**)(&(tmp)))=(char*)((head!=NULL)?(head)->hh.next:NULL)); \
+  (el) != NULL; ((el)=(tmp)), ((*(char**)(&(tmp)))=(char*)((tmp!=NULL)?(tmp)->hh.next:NULL)))
 #else
-#define HASH_ITER(hh,head,el,tmp)                                                \
-for((el)=(head),(tmp)=DECLTYPE(el)((head)?(head)->hh.next:NULL);                 \
-  el; (el)=(tmp),(tmp)=DECLTYPE(el)((tmp)?(tmp)->hh.next:NULL))
+#define MPL_HASH_ITER(hh,head,el,tmp)                                                \
+for(((el)=(head)), ((tmp)=MPL_DECLTYPE(el)((head!=NULL)?(head)->hh.next:NULL));      \
+  (el) != NULL; ((el)=(tmp)), ((tmp)=MPL_DECLTYPE(el)((tmp!=NULL)?(tmp)->hh.next:NULL)))
 #endif
 
 /* obtain a count of items in the hash */
-#define HASH_COUNT(head) HASH_CNT(hh,head)
-#define HASH_CNT(hh,head) ((head)?((head)->hh.tbl->num_items):0)
+#define MPL_HASH_COUNT(head) MPL_HASH_CNT(hh,head)
+#define MPL_HASH_CNT(hh,head) ((head != NULL)?((head)->hh.tbl->num_items):0U)
 
-typedef struct UT_hash_bucket {
-   struct UT_hash_handle *hh_head;
+typedef struct MPL_UT_hash_bucket {
+   struct MPL_UT_hash_handle *hh_head;
    unsigned count;
 
    /* expand_mult is normally set to 0. In this situation, the max chain length
@@ -898,17 +927,17 @@ typedef struct UT_hash_bucket {
     */
    unsigned expand_mult;
 
-} UT_hash_bucket;
+} MPL_UT_hash_bucket;
 
 /* random signature used only to find hash tables in external analysis */
-#define HASH_SIGNATURE 0xa0111fe1
-#define HASH_BLOOM_SIGNATURE 0xb12220f2
+#define MPL_HASH_SIGNATURE 0xa0111fe1u
+#define MPL_HASH_BLOOM_SIGNATURE 0xb12220f2u
 
-typedef struct UT_hash_table {
-   UT_hash_bucket *buckets;
+typedef struct MPL_UT_hash_table {
+   MPL_UT_hash_bucket *buckets;
    unsigned num_buckets, log2_num_buckets;
    unsigned num_items;
-   struct UT_hash_handle *tail; /* tail hh in app order, for fast append    */
+   struct MPL_UT_hash_handle *tail; /* tail hh in app order, for fast append    */
    ptrdiff_t hho; /* hash handle offset (byte pos of hash handle in element */
 
    /* in an ideal situation (all buckets used equally), no bucket would have
@@ -929,23 +958,23 @@ typedef struct UT_hash_table {
    unsigned ineff_expands, noexpand;
 
    uint32_t signature; /* used only to find hash tables in external analysis */
-#ifdef HASH_BLOOM
+#ifdef MPL_HASH_BLOOM
    uint32_t bloom_sig; /* used only to test bloom exists in external analysis */
    uint8_t *bloom_bv;
-   char bloom_nbits;
+   uint8_t bloom_nbits;
 #endif
 
-} UT_hash_table;
+} MPL_UT_hash_table;
 
-typedef struct UT_hash_handle {
-   struct UT_hash_table *tbl;
+typedef struct MPL_UT_hash_handle {
+   struct MPL_UT_hash_table *tbl;
    void *prev;                       /* prev element in app order      */
    void *next;                       /* next element in app order      */
-   struct UT_hash_handle *hh_prev;   /* previous hh in bucket order    */
-   struct UT_hash_handle *hh_next;   /* next hh in bucket order        */
+   struct MPL_UT_hash_handle *hh_prev;   /* previous hh in bucket order    */
+   struct MPL_UT_hash_handle *hh_next;   /* next hh in bucket order        */
    void *key;                        /* ptr to enclosing struct's key  */
    unsigned keylen;                  /* enclosing struct's key len     */
    unsigned hashv;                   /* result of hash-fcn(key)        */
-} UT_hash_handle;
+} MPL_UT_hash_handle;
 
-#endif /* MPIR_UTHASH_H_INCLUDED */
+#endif /* MPL_UTHASH_H */

-----------------------------------------------------------------------

Summary of changes:
 src/include/Makefile.mk                            |    1 -
 src/include/mpit.h                                 |    2 +-
 src/include/mpitimpl.h                             |    4 +-
 src/mpi/comm/commutil.c                            |   12 +-
 src/mpi/comm/contextid.c                           |    1 -
 src/mpi_t/cat_get_index.c                          |    2 +-
 src/mpi_t/cvar_get_index.c                         |    2 +-
 src/mpi_t/mpit.c                                   |   20 +-
 src/mpi_t/mpit_finalize.c                          |   18 +-
 src/mpi_t/pvar_get_index.c                         |    2 +-
 .../mpir_uthash.h => mpl/include/mpl_uthash.h}     |  777 ++++++++++----------
 11 files changed, 434 insertions(+), 407 deletions(-)
 rename src/{include/mpir_uthash.h => mpl/include/mpl_uthash.h} (57%)
 mode change 100644 => 100755


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