add !! to signbit macro so the return type is not uint64_t

diff --git a/include/math.h b/include/math.h
index 19097a5..f320b8e 100644 (file)
--- a/include/math.h
+++ b/include/math.h
@@ -74,8 +74,8 @@ int __signbitf(float);
 int __signbitl(long double);
 
 #define signbit(x) ( \
 int __signbitl(long double);
 
 #define signbit(x) ( \

-       sizeof(x) == sizeof(float) ? __FLOAT_BITS(x) & 0x80000000 : \
-       sizeof(x) == sizeof(double) ? __DOUBLE_BITS(x) & (__uint64_t)1<<63 : \
+       sizeof(x) == sizeof(float) ? !!(__FLOAT_BITS(x) & 0x80000000) : \
+       sizeof(x) == sizeof(double) ? !!(__DOUBLE_BITS(x) & (__uint64_t)1<<63) : \

        __signbitl(x) )
 
 #define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y)))
        __signbitl(x) )
 
 #define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y)))