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Merge "Switch fpclassify over to ieee_ext."

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Elliott Hughes 2014-04-16 23:57:06 +00:00 committed by Gerrit Code Review
commit 8da69a25b7
1 changed files with 7 additions and 10 deletions
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17
libc/bionic/fpclassify.cpp
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@ -96,22 +96,19 @@ __strong_alias(isnanf, __isnanf);
union long_double_u { union long_double_u {
long double ld; long double ld;
struct { ieee_ext bits;
unsigned long fracl:64;
unsigned long frach:48;
unsigned int exp:15;
unsigned int sign:1;
} bits;
}; };
#define zero_frac(b) ((b.ext_fracl | b.ext_fraclm | b.ext_frachm | b.ext_frach) == 0)
int __fpclassifyl(long double ld) { int __fpclassifyl(long double ld) {
long_double_u u; long_double_u u;
u.ld = ld; u.ld = ld;
if (u.bits.exp == 0) { if (u.bits.ext_exp == 0) {
return ((u.bits.fracl | u.bits.frach) == 0) ? FP_ZERO : FP_SUBNORMAL; return zero_frac(u.bits) ? FP_ZERO : FP_SUBNORMAL;
} }
if (u.bits.exp == EXT_EXP_INFNAN) { if (u.bits.ext_exp == EXT_EXP_INFNAN) {
return ((u.bits.fracl | u.bits.frach) == 0) ? FP_INFINITE : FP_NAN; return zero_frac(u.bits) ? FP_INFINITE : FP_NAN;
} }
return FP_NORMAL; return FP_NORMAL;
} }