/* _LDtest function -- IEEE 754 version */ #include "xmath.h" _C_STD_BEGIN #if _DLONG == 0 _MRTIMP2_NCEEPURE short __CLRCALL_PURE_OR_CDECL _LDtest(long double *px) { /* categorize *px -- 64-bit */ return (_Dtest((double *)px)); } #elif _DLONG == 1 _MRTIMP2_NCEEPURE short __CLRCALL_PURE_OR_CDECL _LDtest(long double *px) { /* categorize *px -- 80-bit */ unsigned short *ps = (unsigned short *)(char *)px; short xchar = ps[_L0] & _LMASK; if (xchar == _LMAX) return ((ps[_L1] & 0x7fff) != 0 || ps[_L2] != 0 || ps[_L3] != 0 || ps[_L4] != 0 ? _NANCODE : _INFCODE); else if (0 < xchar || ps[_L1] != 0 || ps[_L2] || ps[_L3] || ps[_L4]) return (ps[_L1] < 0x8000 ? _DENORM : _FINITE); else return (0); } #else /* 1 < _DLONG */ _MRTIMP2_NCEEPURE short __CLRCALL_PURE_OR_CDECL _LDtest(long double *px) { /* categorize *px -- 128-bit SPARC */ unsigned short *ps = (unsigned short *)(char *)px; short xchar = ps[_L0] & _LMASK; if (xchar == _LMAX) return (ps[_L1] != 0 || ps[_L2] != 0 || ps[_L3] != 0 || ps[_L4] != 0 || ps[_L5] != 0 || ps[_L6] != 0 || ps[_L7] != 0 ? _NANCODE : _INFCODE); else if (0 < xchar || ps[_L1] != 0 || ps[_L2] != 0 || ps[_L3] != 0 || ps[_L4] != 0 || ps[_L5] != 0 || ps[_L6] != 0 || ps[_L7] != 0) return (xchar == 0 ? _DENORM : _FINITE); else return (0); } #endif /* _DLONG */ _C_STD_END /* * Copyright (c) 1992-2005 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. V4.05:0009 */