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functions "luaI_free" and "luaI_realloc" (or macro "growvector") may be

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called with NULL.
This commit is contained in:
Roberto Ierusalimschy
1996-02-22 17:34:33 -03:00
parent 05caf09a36
commit 8c1a9899d4
6 changed files with 33 additions and 57 deletions
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28
tree.c
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@@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
char *rcs_tree="$Id: tree.c,v 1.17 1996/02/14 13:35:51 roberto Exp roberto $";
char *rcs_tree="$Id: tree.c,v 1.18 1996/02/14 19:11:09 roberto Exp roberto $";
#include <string.h>
@@ -55,20 +55,18 @@ static void grow (stringtable *tb)
int i;
for (i=0; i<newsize; i++)
newhash[i] = NULL;
if (tb->size > 0)
{ /* rehash */
tb->nuse = 0;
for (i=0; i<tb->size; i++)
if (tb->hash[i] != NULL && tb->hash[i] != &EMPTY)
{
int h = tb->hash[i]->hash%newsize;
while (newhash[h])
h = (h+1)%newsize;
newhash[h] = tb->hash[i];
tb->nuse++;
}
luaI_free(tb->hash);
}
/* rehash */
tb->nuse = 0;
for (i=0; i<tb->size; i++)
if (tb->hash[i] != NULL && tb->hash[i] != &EMPTY)
{
int h = tb->hash[i]->hash%newsize;
while (newhash[h])
h = (h+1)%newsize;
newhash[h] = tb->hash[i];
tb->nuse++;
}
luaI_free(tb->hash);
tb->size = newsize;
tb->hash = newhash;
}