From 4dbd94112ff74064554054b5ff27a7af547e4899 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Fri, 30 Mar 2012 23:41:43 -0400 Subject: optimize signbit macro --- include/math.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/math.h b/include/math.h index 8791bba8..ff62cb7c 100644 --- a/include/math.h +++ b/include/math.h @@ -77,8 +77,8 @@ int __signbitf(float); 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) ? (int)(__FLOAT_BITS(x)>>31) : \ + sizeof(x) == sizeof(double) ? (int)(__DOUBLE_BITS(x)>>63) : \ __signbitl(x) ) #define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y))) -- cgit v1.2.1