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#include "libm.h" #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 int __fpclassifyl(long double x) { return __fpclassify(x); } #elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 int __fpclassifyl(long double x) { union ldshape u = {x}; int e = u.i.se & 0x7fff; int msb = u.i.m>>63; if (!e && !msb) return u.i.m ? FP_SUBNORMAL : FP_ZERO; if (!msb) return FP_NAN; if (e == 0x7fff) return u.i.m << 1 ? FP_NAN : FP_INFINITE; return FP_NORMAL; } #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 int __fpclassifyl(long double x) { union ldshape u = {x}; int e = u.i.se & 0x7fff; u.i.se = 0; if (!e) return u.i2.lo | u.i2.hi ? FP_SUBNORMAL : FP_ZERO; if (e == 0x7fff) return u.i2.lo | u.i2.hi ? FP_NAN : FP_INFINITE; return FP_NORMAL; } #endif |