On Friday 16 January 2026 17:12:41 LIU Hao wrote:
> 在 2025-12-29 01:35, Pali Rohár 写道:
> > ---
> > mingw-w64-crt/testcases/Makefile.am | 1 +
> > mingw-w64-crt/testcases/t_time32.c | 26 ++++++++++++++++++++++++++
> > 2 files changed, 27 insertions(+)
> > create mode 100644 mingw-w64-crt/testcases/t_time32.c
> >
> > diff --git a/mingw-w64-crt/testcases/t_time32.c
> > b/mingw-w64-crt/testcases/t_time32.c
> > new file mode 100644
> > index 000000000000..980d2755dcc2
> > --- /dev/null
> > +++ b/mingw-w64-crt/testcases/t_time32.c
> > @@ -0,0 +1,26 @@
> > +#include <stdio.h>
> > +#include <sys/timeb.h>
> > +#include <time.h>
> > +#include <utime.h>
> > +
> > +int main() {
> > + /* Check that all 32-bit time functions are present and can be called
> > */
> > + struct tm tm;
> > + __time32_t t;
> > + struct __timeb32 tb;
> > + struct __utimbuf32 utb;
> > + _ctime32(&t);
> > + _difftime32(t, t);
>
> This fails to compile; those variables require initialization:
>
>
> ../../testcases/t_time32.c: In function 'main':
> ../../testcases/t_time32.c:12:5: error: 't' may be used uninitialized
> [-Werror=maybe-uninitialized]
> 12 | _ctime32(&t);
> | ^~~~~~~~~~~~
> In file included from ../../testcases/t_time32.c:3:
> D:/a/_temp/msys64/gcc-mingw/i686-w64-mingw32/include/time.h:144:25: note: by
> argument 1 of type 'const __time32_t *' {aka 'const long int *'} to
> '_ctime32' declared here
> 144 | _CRTIMP char *__cdecl _ctime32(const __time32_t *_Time)
> __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
> | ^~~~~~~~
> ../../testcases/t_time32.c:9:16: note: 't' declared here
> 9 | __time32_t t;
> | ^
Ok, I will add initialization there. It passed compilation for me
locally, so probably it is due to different gcc versions or different
flags.
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