On 2017-05-24 19:31, Steven Penny wrote: > On Wed, 24 May 2017 16:36:03, Steven Penny wrote: >> Aren’t both wrong? By definition %i is a signed integer, and size_t is >> unsigned. >> So %zu or %llu would be more correct: >> http://wikipedia.org/wiki/C_data_types >> They all seem to do the job though: > Correcting myself. Here is why you cannot use %zi: > $ cat alfa.c > #define __USE_MINGW_ANSI_STDIO 1 > #include <stdio.h> > int main() { > printf("%zi %zu %llu\n", __SIZE_MAX__, __SIZE_MAX__, > __SIZE_MAX__); > } > $ x86_64-w64-mingw32-gcc -o alfa alfa.c > $ ./alfa > -1 18446744073709551615 18446744073709551615
I think either 10+ digits or a negative value are adequate indicators that something may have gone wrong, and -1 is a more compact format for *_MAX, unless you need to see actual values. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
