array_get: no need to multiply again. remove unneeded checks. remove array_free_wipe().

This commit is contained in:
Florian Westphal 2006-09-30 21:49:46 +00:00
parent a2f5a05ff8
commit 4c6c6ecf0e
1 changed files with 3 additions and 19 deletions

View File

@ -12,7 +12,7 @@
#include "array.h"
static char UNUSED id[] = "$Id: array.c,v 1.11 2006/07/01 22:11:48 fw Exp $";
static char UNUSED id[] = "$Id: array.c,v 1.12 2006/09/30 21:49:46 fw Exp $";
#include <assert.h>
@ -66,10 +66,7 @@ array_alloc(array * a, size_t size, size_t pos)
assert(size > 0);
if (pos_plus1 < pos)
return NULL;
if (!safemult_sizet(size, pos_plus1, &alloc))
if (pos_plus1 == 0 || !safemult_sizet(size, pos_plus1, &alloc))
return NULL;
if (a->allocated < alloc) {
@ -263,7 +260,7 @@ array_get(array * a, size_t membersize, size_t pos)
if (a->allocated < totalsize)
return NULL;
return a->mem + pos * membersize;
return a->mem + totalsize;
}
@ -283,16 +280,6 @@ array_free(array * a)
}
void
array_free_wipe(array * a)
{
if (!array_UNUSABLE(a))
memset(a->mem, 0, a->allocated);
array_free(a);
}
void *
array_start(const array * const a)
{
@ -331,9 +318,6 @@ array_moveleft(array * a, size_t membersize, size_t pos)
assert(a != NULL);
assert(membersize > 0);
if (!pos)
return;
if (!safemult_sizet(membersize, pos, &bytepos)) {
a->used = 0;
return;