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safemult_uint(): return bool

This commit is contained in:
Florian Westphal 2005-07-07 21:26:31 +00:00
parent b88e97f193
commit 7b5a1bbe3c
1 changed files with 5 additions and 5 deletions
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10
src/ngircd/array.c
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@ -12,7 +12,7 @@
#include "array.h" #include "array.h"
static char UNUSED id[] = "$Id: array.c,v 1.1 2005/07/07 18:38:14 fw Exp $"; static char UNUSED id[] = "$Id: array.c,v 1.2 2005/07/07 21:26:31 fw Exp $";
#include <assert.h> #include <assert.h>
@ -28,23 +28,23 @@ static char UNUSED id[] = "$Id: array.c,v 1.1 2005/07/07 18:38:14 fw Exp $";
#define ALIGN_4096U(x) ((x | 0xfffU) +1) #define ALIGN_4096U(x) ((x | 0xfffU) +1)
static int static bool
safemult_uint(unsigned int a, unsigned int b, unsigned int *res) safemult_uint(unsigned int a, unsigned int b, unsigned int *res)
{ {
unsigned int tmp; unsigned int tmp;
if (!a || !b) { if (!a || !b) {
*res = 0; *res = 0;
return 1; return true;
} }
tmp = a * b; tmp = a * b;
if (tmp / b != a) if (tmp / b != a)
return 0; return false;
*res = tmp; *res = tmp;
return 1; return true;
} }