Add const for first argument of sigismember for fit POSIX spec
Change-Id: Icbc67375282f2a22dce02e4bacab15ddae846057
diff --git a/libc/include/signal.h b/libc/include/signal.h
index e2713db..0770b0f 100644
--- a/libc/include/signal.h
+++ b/libc/include/signal.h
@@ -57,13 +57,13 @@
extern const char* const sys_siglist[];
extern const char* const sys_signame[];
-static __inline__ int sigismember(sigset_t* set, int signum) {
+static __inline__ int sigismember(const sigset_t* set, int signum) {
int bit = signum - 1; // Signal numbers start at 1, but bit positions start at 0.
if (set == NULL || bit < 0 || bit >= 8*sizeof(sigset_t)) {
errno = EINVAL;
return -1;
}
- unsigned long* local_set = (unsigned long*) set;
+ const unsigned long* local_set = (const unsigned long*) set;
return (int) ((local_set[bit / LONG_BIT] >> (bit % LONG_BIT)) & 1);
}
