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PR 47802 Use builtins to check localtime_r return type 

From-SVN: r170683
This commit is contained in:
Janne Blomqvist 2011-03-04 21:07:49 +02:00
parent 87e7b310b3
commit 246a273017
2 changed files with 14 additions and 3 deletions
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6
libgfortran/ChangeLog
View File

@ -1,3 +1,9 @@
2011-03-04 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/47802
* intrinsics/ctime.c (strctime): Use builtins to check localtime_r
return type.
2011-03-04 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/47802

11
libgfortran/intrinsics/ctime.c
View File

@ -40,11 +40,16 @@ strctime (char *s, size_t max, const time_t *timep)
{
#ifdef HAVE_STRFTIME
struct tm ltm;
/* Note: We can't use the return value of localtime_r, as some
targets provide localtime_r based on a draft of the POSIX
int failed;
/* Some targets provide a localtime_r based on a draft of the POSIX
standard where the return type is int rather than the
standardized struct tm*. */
localtime_r (timep, &ltm);
__builtin_choose_expr (__builtin_classify_type (localtime_r (timep, &ltm))
== 5,
failed = localtime_r (timep, &ltm) == NULL,
failed = localtime_r (timep, &ltm) != 0);
if (failed)
return 0;
return strftime (s, max, "%c", &ltm);
#else
return 0;