Merge commit 'origin/stable'

[pspp-builds.git] / src / libpspp / hash.c

diff --git a/src/libpspp/hash.c b/src/libpspp/hash.c
index 2afd15f07681a469fc65c9960d100b7ac9abb7dc..eb43b54e7fedf24d7db0dd569cc34d885bb91dd4 100644 (file)
--- a/src/libpspp/hash.c
+++ b/src/libpspp/hash.c
@@ -1,37 +1,34 @@
-/* PSPP - computes sample statistics.
-   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 1997-9, 2000, 2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include <config.h>
 #include <stdbool.h>
 #include "hash.h"
 #include "message.h"
 #include <assert.h>
-#include <ctype.h>
 #include <limits.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include "array.h"
-#include "alloc.h"
 #include "compiler.h"
 #include "misc.h"
 #include "str.h"
 #include "pool.h"
 
+#include "xalloc.h"
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
@@ -72,74 +69,6 @@ next_power_of_2 (size_t x)
     }
 }
 
-/* Fowler-Noll-Vo hash constants, for 32-bit word sizes. */
-#define FNV_32_PRIME 16777619u
-#define FNV_32_BASIS 2166136261u
-
-/* Fowler-Noll-Vo 32-bit hash, for bytes. */
-unsigned
-hsh_hash_bytes (const void *buf_, size_t size)
-{
-  const unsigned char *buf = (const unsigned char *) buf_;
-  unsigned hash;
-
-  assert (buf != NULL);
-
-  hash = FNV_32_BASIS;
-  while (size-- > 0)
-    hash = (hash * FNV_32_PRIME) ^ *buf++;
-
-  return hash;
-}
-
-/* Fowler-Noll-Vo 32-bit hash, for strings. */
-unsigned
-hsh_hash_string (const char *s_)
-{
-  const unsigned char *s = (const unsigned char *) s_;
-  unsigned hash;
-
-  assert (s != NULL);
-
-  hash = FNV_32_BASIS;
-  while (*s != '\0')
-    hash = (hash * FNV_32_PRIME) ^ *s++;
-
-  return hash;
-}
-
-/* Fowler-Noll-Vo 32-bit hash, for case-insensitive strings. */
-unsigned
-hsh_hash_case_string (const char *s_)
-{
-  const unsigned char *s = (const unsigned char *) s_;
-  unsigned hash;
-
-  assert (s != NULL);
-
-  hash = FNV_32_BASIS;
-  while (*s != '\0')
-    hash = (hash * FNV_32_PRIME) ^ toupper (*s++);
-
-  return hash;
-}
-
-/* Hash for ints. */
-unsigned
-hsh_hash_int (int i)
-{
-  return hsh_hash_bytes (&i, sizeof i);
-}
-
-/* Hash for double. */
-unsigned
-hsh_hash_double (double d)
-{
-  if (!isnan (d))
-    return hsh_hash_bytes (&d, sizeof d);
-  else
-    return 0;
-}
 \f
 /* Hash tables. */
 
@@ -451,7 +380,7 @@ hsh_sort_copy (struct hsh_table *h)
    to a pointer to that entry; otherwise returns a pointer to a
    NULL entry which *must* be used to insert a new entry having
    the same key data.  */
-inline void **
+void **
 hsh_probe (struct hsh_table *h, const void *target)
 {
   unsigned i;