[BCC gcc-bugs@xxxxxxxxxxx]
On 04/21/2018 03:47 AM, Dávid Bolvanský wrote:
Hello,
#include <math.h>
int main(void)
{
char buf[10];
return snprintf(buf, 0, "string");
}
GCC simplifies it to
main:
mov eax, 6
ret
but 0 is correct I think.
Please use Bugzilla to report problems and post questions to
gcc-help. This is list is a Bugzilla reflector (it collects
Bugzilla traffic).
The snprintf function returns the number of characters that
would have been written had n been sufficiently large so
GCC's behavior is correct.
Besides the C standard a normative description of snprintf
can be found in POSIX:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/snprintf.html
Martin
