On Tue, 27 Jul 2010, Richard Henderson wrote:
> On 07/27/2010 11:45 AM, malc wrote:
> >> + syms = realloc(syms, nsyms * sizeof(*syms));
> >
> > Realloc can fail here.
>
> I don't believe it can. This (pre-existing) statement *reduces*
> the existing allocation of syms. I'd be surprised if any malloc
> implementation fails on a size reduction.
Life is full of surprises.
realloc$ cat tr.c
#include <stdio.h>
#include <stdlib.h>
int main (void)
{
void *ptr;
for (;;) {
ptr = malloc (2);
if (!ptr) break;
}
printf ("result = %p\n", realloc (ptr, 1));
return 0;
}
realloc$ \time -v ./a.out
result = (nil)
Command being timed: "./a.out"
User time (seconds): 5.62
[..snip..]
> That said, I'd be happy enough to eliminate the call entirely.
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