2 ms·
huh@px:/tmp$ cat a.c int main(int argc, char *argv[]) { if (argc = 0) return 1; return 0; } huh@px:/tmp$ gcc -Wall a.c
by huhtenberg 13y ago
huh@px:/tmp$ cat a.c
int main(int argc, char *argv[]) {
if (argc = 0)
return 1;
return 0;
}
huh@px:/tmp$ gcc -Wall a.c
a.c: In function 'main':
a.c:2: warning: suggest parentheses around assignment used as truth value
- harrytuttle 13y agoDoesn't do that for me - what GCC ver and environment. Very odd! Digging in docs. Thanks for info.
- huhtenberg 13y agoIt's some old-ish Debian on x86. GCC is 4.3.2. But this is a such commonly-recognized pitfall that I actually don't know a single modern production compiler that does not generate this warning. (edit) Just checked 4.7.1 and it generates the warning.
- harrytuttle 13y agoThanks. I think this must be a config issue on this box. It makes me wonder what other warnings it is not telling me about.