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(hcreate_r): We need at least three elements in the hash table.

This commit is contained in:
Ulrich Drepper 2009-01-23 20:34:21 +00:00
parent 0699a0ca6a
commit 8073a49484
1 changed files with 5 additions and 1 deletions
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6
misc/hsearch_r.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1993,1995-1997,2002,2005,2007,2008 /* Copyright (C) 1993,1995-1997,2002,2005,2007,2008,2009
Free Software Foundation, Inc. Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1993. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1993.
@ -79,6 +79,10 @@ hcreate_r (nel, htab)
if (htab->table != NULL) if (htab->table != NULL)
return 0; return 0;
/* We need a size of at least 3. Otherwise the hash functions we
use will not work. */
if (nel < 3)
nel = 3;
/* Change nel to the first prime number not smaller as nel. */ /* Change nel to the first prime number not smaller as nel. */
nel |= 1; /* make odd */ nel |= 1; /* make odd */
while (!isprime (nel)) while (!isprime (nel))