mirror of git://git.musl-libc.org/musl
math: fix __fpclassifyl(-0.0) for IEEE binary128
The sign bit was not cleared before checking for 0 so -0.0 was misclassified as FP_SUBNORMAL instead of FP_ZERO.
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@ -24,12 +24,11 @@ int __fpclassifyl(long double x)
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{
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union ldshape u = {x};
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int e = u.i.se & 0x7fff;
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u.i.se = 0;
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if (!e)
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return u.i2.lo | u.i2.hi ? FP_SUBNORMAL : FP_ZERO;
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if (e == 0x7fff) {
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u.i.se = 0;
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if (e == 0x7fff)
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return u.i2.lo | u.i2.hi ? FP_NAN : FP_INFINITE;
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}
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return FP_NORMAL;
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}
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#endif
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