musl - musl - an implementation of the standard library for Linux-based systems

musl - an implementation of the standard library for Linux-based systems

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author	Rich Felker <dalias@aerifal.cx>	2012年09月06日 22:44:55 -0400
committer	Rich Felker <dalias@aerifal.cx>	2012年09月06日 22:44:55 -0400
commit	400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch)
tree	087a48dc8251fa05f6866af8ebf96b69450b15ab /include/semaphore.h
parent	bac03cdde1137c16b4c194e137310e2748661dcc (diff)
download	musl-400c5e5c8307a2ebe44ef1f203f5a15669f20347.tar.gz

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/semaphore.h')

-rw-r--r--

include/semaphore.h

1 files changed, 8 insertions, 2 deletions

diff --git a/include/semaphore.h b/include/semaphore.h
index 2e9b8100..724957fb 100644
--- a/include/semaphore.h
+++ b/include/semaphore.h

@@ -4,6 +4,12 @@

extern "C" {

#endif

+#if __STDC_VERSION__ >= 199901L

+#define __restrict restrict

+#elif !defined(__GNUC__)

+#define __restrict

+#endif

#define __NEED_time_t

#define __NEED_struct_timespec

#include <bits/alltypes.h>

@@ -18,11 +24,11 @@ typedef struct {

int sem_close(sem_t *);

int sem_destroy(sem_t *);

-int sem_getvalue(sem_t *, int *);

+int sem_getvalue(sem_t *__restrict, int *__restrict);

int sem_init(sem_t *, int, unsigned);

sem_t *sem_open(const char *, int, ...);

int sem_post(sem_t *);

-int sem_timedwait(sem_t *, const struct timespec *);

+int sem_timedwait(sem_t *__restrict, const struct timespec *__restrict);

int sem_trywait(sem_t *);

int sem_unlink(const char *);

int sem_wait(sem_t *);

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