On 20 Sep 2015 11:45, Paul Pluzhnikov wrote:
On Sun, Sep 20, 2015 at 11:39 AM, Paul Eggert wrote:
tp->tm_hour = 1024;
strftime(..., "%H %I", tp); // produces "1024 04"
that doesn't seem very desirable.
That helps the programmer more than returning 0 would.
Yes, you convinced me that returning 0 is the wrong thing to do.
The remaining question was whether tm_hour==1024 should map to "1024"
or to "?". Your other example suggests that "1024" is more useful.
as i mentioned in the previous thread, i think dumping more details would
be nicer, and still permissible by the standard. using tm_hour=1024, we
might have something like:
$ cat test.c
#include <stdio.h>
#include <string.h>
#include <time.h>
int main()
{
char buf[1024];
struct tm tm;
memset(&tm, 0, sizeof(tm));
tm.tm_hour = 1024;
size_t ret = strftime(buf, sizeof(buf), "%H %I", &tm);
printf("buf = %s\n", buf);
}
$ ./a.out
buf = INVALID<H/tm_hour=1024> 1012