path: root/include/sys/time.h
diff options
authorRich Felker <>2012-09-06 22:44:55 -0400
committerRich Felker <>2012-09-06 22:44:55 -0400
commit400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch)
tree087a48dc8251fa05f6866af8ebf96b69450b15ab /include/sys/time.h
parentbac03cdde1137c16b4c194e137310e2748661dcc (diff)
use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
Diffstat (limited to 'include/sys/time.h')
1 files changed, 8 insertions, 2 deletions
diff --git a/include/sys/time.h b/include/sys/time.h
index 144dd230..bf026432 100644
--- a/include/sys/time.h
+++ b/include/sys/time.h
@@ -4,9 +4,15 @@
extern "C" {
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
#include <sys/select.h>
-int gettimeofday (struct timeval *, void *);
+int gettimeofday (struct timeval *__restrict, void *__restrict);
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
@@ -22,7 +28,7 @@ struct itimerval
int getitimer (int, struct itimerval *);
-int setitimer (int, const struct itimerval *, struct itimerval *);
+int setitimer (int, const struct itimerval *__restrict, struct itimerval *__restrict);
int utimes (const char *, const struct timeval [2]);