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malloc can return NULL when given a 0 argument

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This commit is contained in:
ceriel 1989-10-30 18:25:30 +00:00
parent 046d5b38a9
commit 4b445d4860
3 changed files with 3 additions and 3 deletions
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2
modules/src/alloc/Malloc.c
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@ -18,6 +18,6 @@ Malloc(sz)
{ {
register char *res = malloc(sz); register char *res = malloc(sz);
if (res == 0) No_Mem(); if (sz && res == 0) No_Mem();
return res; return res;
} }

2
modules/src/alloc/Realloc.c
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@ -18,6 +18,6 @@ Realloc(ptr, sz)
unsigned int sz; unsigned int sz;
{ {
register char *mptr = realloc(ptr, sz); register char *mptr = realloc(ptr, sz);
if (mptr == 0) No_Mem(); if (sz && mptr == 0) No_Mem();
return mptr; return mptr;
} }

2
modules/src/alloc/Salloc.c
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@ -24,7 +24,7 @@ Salloc(str, sz)
char *res = malloc(sz); char *res = malloc(sz);
register char *m = res; register char *m = res;
if (m == 0) No_Mem(); if (sz && m == 0) No_Mem();
while (sz--) while (sz--)
*m++ = *str++; *m++ = *str++;
return res; return res;