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| author | nsz <nsz@port70.net> | 2012-05-06 21:24:28 +0200 |
|---|---|---|
| committer | nsz <nsz@port70.net> | 2012-05-06 21:24:28 +0200 |
| commit | 6ab8136b4477fd75381c06fa0e7fa93c89c712a1 (patch) | |
| tree | fea8ff7bf34e2a41e797528571d62097413b3685 /src/math/nextafterl.c | |
| parent | 4e597feef0595caefa39ab43c813734a1244fa84 (diff) | |
| download | musl-6ab8136b4477fd75381c06fa0e7fa93c89c712a1.tar.gz musl-6ab8136b4477fd75381c06fa0e7fa93c89c712a1.tar.xz musl-6ab8136b4477fd75381c06fa0e7fa93c89c712a1.zip | |
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.
Diffstat (limited to 'src/math/nextafterl.c')
| -rw-r--r-- | src/math/nextafterl.c | 12 |
1 files changed, 4 insertions, 8 deletions
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 |