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

diff --git a/src/internal/atomic.h b/src/internal/atomic.h
index f938879b..99539cc0 100644
--- a/src/internal/atomic.h
+++ b/src/internal/atomic.h

@@ -315,4 +315,19 @@ static inline int a_clz_64(uint64_t x)

}

#endif

+#ifndef a_clz_32

+#define a_clz_32 a_clz_32

+static inline int a_clz_32(uint32_t x)

+{

+ x--;

+ x |= x >> 1;

+ x |= x >> 2;

+ x |= x >> 4;

+ x |= x >> 8;

+ x |= x >> 16;

+ x++;

+ return 31-a_ctz_32(x);

+}

+#endif

+

#endif