fix integer overflow in WIFSTOPPED macro

[musl] / src / math / __fpclassifyf.c

diff --git a/src/math/__fpclassifyf.c b/src/math/__fpclassifyf.c
index bf59d0d..fd00eb1 100644 (file)
--- a/src/math/__fpclassifyf.c
+++ b/src/math/__fpclassifyf.c
@@ -1,14 +1,11 @@
-#include <stdint.h>
 #include <math.h>
+#include <stdint.h>
 
-int __fpclassifyf(float __x)
+int __fpclassifyf(float x)
 {
-       union {
-               float __f;
-               __uint32_t __i;
-       } __y = { __x };
-       int __ee = __y.__i>>23 & 0xff;
-       if (!__ee) return __y.__i<<1 ? FP_SUBNORMAL : FP_ZERO;
-       if (__ee==0xff) return __y.__i<<9 ? FP_NAN : FP_INFINITE;
+       union {float f; uint32_t i;} u = {x};
+       int e = u.i>>23 & 0xff;
+       if (!e) return u.i<<1 ? FP_SUBNORMAL : FP_ZERO;
+       if (e==0xff) return u.i<<9 ? FP_NAN : FP_INFINITE;
        return FP_NORMAL;
 }