summaryrefslogtreecommitdiff
path: root/include/signal.h
diff options
context:
space:
mode:
authorRich Felker <dalias@aerifal.cx>2012-09-06 22:44:55 -0400
committerRich Felker <dalias@aerifal.cx>2012-09-06 22:44:55 -0400
commit400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch)
tree087a48dc8251fa05f6866af8ebf96b69450b15ab /include/signal.h
parentbac03cdde1137c16b4c194e137310e2748661dcc (diff)
downloadmusl-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/signal.h')
-rw-r--r--include/signal.h20
1 files changed, 13 insertions, 7 deletions
diff --git a/include/signal.h b/include/signal.h
index d4856a89..e0dae192 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -5,6 +5,12 @@
extern "C" {
#endif
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
+#endif
+
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
@@ -165,16 +171,16 @@ int sigaddset(sigset_t *, int);
int sigdelset(sigset_t *, int);
int sigismember(const sigset_t *, int);
-int sigprocmask(int, const sigset_t *, sigset_t *);
+int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict);
int sigsuspend(const sigset_t *);
-int sigaction(int, const struct sigaction *, struct sigaction *);
+int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict);
int sigpending(sigset_t *);
-int sigwait(const sigset_t *, int *);
-int sigwaitinfo(const sigset_t *, siginfo_t *);
-int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
+int sigwait(const sigset_t *__restrict, int *__restrict);
+int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict);
+int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict);
int sigqueue(pid_t, int, const union sigval);
-int pthread_sigmask(int, const sigset_t *, sigset_t *);
+int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
int pthread_kill(pthread_t, int);
void psiginfo(const siginfo_t *, const char *);
@@ -184,7 +190,7 @@ void psignal(int, const char *);
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int killpg(pid_t, int);
-int sigaltstack(const stack_t *, stack_t *);
+int sigaltstack(const stack_t *__restrict, stack_t *__restrict);
int sighold(int);
int sigignore(int);
int siginterrupt(int, int);