From 6ab8136b4477fd75381c06fa0e7fa93c89c712a1 Mon Sep 17 00:00:00 2001 From: nsz Date: Sun, 6 May 2012 21:24:28 +0200 Subject: add FORCE_EVAL macro to evaluate float expr for their side effect updated nextafter* to use FORCE_EVAL, it can be used in many other places in the math code to improve readability. --- src/math/nextafterl.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'src/math/nextafterl.c') diff --git a/src/math/nextafterl.c b/src/math/nextafterl.c index c09d9dd0..edc3cc9c 100644 --- a/src/math/nextafterl.c +++ b/src/math/nextafterl.c @@ -38,10 +38,8 @@ long double nextafterl(long double x, long double y) if (ux.bits.exp == 0x7fff) return x + x; /* raise underflow if ux.value is subnormal or zero */ - if (ux.bits.exp == 0) { - volatile float z; - z = x*x + ux.value*ux.value; - } + if (ux.bits.exp == 0) + FORCE_EVAL(x*x + ux.value*ux.value); return ux.value; } #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 @@ -77,10 +75,8 @@ long double nextafterl(long double x, long double y) if (ux.bits.exp == 0x7fff) return x + x; /* raise underflow if ux.value is subnormal or zero */ - if (ux.bits.exp == 0) { - volatile float z; - z = x*x + ux.value*ux.value; - } + if (ux.bits.exp == 0) + FORCE_EVAL(x*x + ux.value*ux.value); return ux.value; } #endif -- cgit v1.2.1