1112158Sdas/**************************************************************** 2112158Sdas 3112158SdasThe author of this software is David M. Gay. 4112158Sdas 5112158SdasCopyright (C) 1998, 2000 by Lucent Technologies 6112158SdasAll Rights Reserved 7112158Sdas 8112158SdasPermission to use, copy, modify, and distribute this software and 9112158Sdasits documentation for any purpose and without fee is hereby 10112158Sdasgranted, provided that the above copyright notice appear in all 11112158Sdascopies and that both that the copyright notice and this 12112158Sdaspermission notice and warranty disclaimer appear in supporting 13112158Sdasdocumentation, and that the name of Lucent or any of its entities 14112158Sdasnot be used in advertising or publicity pertaining to 15112158Sdasdistribution of the software without specific, written prior 16112158Sdaspermission. 17112158Sdas 18112158SdasLUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19112158SdasINCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. 20112158SdasIN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY 21112158SdasSPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 22112158SdasWHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 23112158SdasIN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 24112158SdasARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF 25112158SdasTHIS SOFTWARE. 26112158Sdas 27112158Sdas****************************************************************/ 28112158Sdas 29165743Sdas/* Please send bug reports to David M. Gay (dmg at acm dot org, 30165743Sdas * with " at " changed at "@" and " dot " changed to "."). */ 31112158Sdas 32174679Sdas/* $FreeBSD$ */ 33174679Sdas 34112158Sdas#include "gdtoaimp.h" 35112158Sdas 36112158Sdas float 37112158Sdas#ifdef KR_headers 38227753Stheravenstrtof_l(s, sp, loc) CONST char *s; char **sp; locale_t loc; 39112158Sdas#else 40227753Stheravenstrtof_l(CONST char *s, char **sp, locale_t loc) 41112158Sdas#endif 42112158Sdas{ 43182710Sdas static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, SI }; 44112158Sdas ULong bits[1]; 45112158Sdas Long exp; 46112158Sdas int k; 47112158Sdas union { ULong L[1]; float f; } u; 48187808Sdas#ifdef Honor_FLT_ROUNDS 49187808Sdas#include "gdtoa_fltrnds.h" 50187808Sdas#else 51187808Sdas#define fpi &fpi0 52187808Sdas#endif 53112158Sdas 54227753Stheraven k = strtodg_l(s, sp, fpi, &exp, bits, loc); 55112158Sdas switch(k & STRTOG_Retmask) { 56112158Sdas case STRTOG_NoNumber: 57112158Sdas case STRTOG_Zero: 58112158Sdas u.L[0] = 0; 59112158Sdas break; 60112158Sdas 61112158Sdas case STRTOG_Normal: 62219557Sdas u.L[0] = (bits[0] & 0x7fffff) | ((exp + 0x7f + 23) << 23); 63112158Sdas break; 64112158Sdas 65174679Sdas case STRTOG_NaNbits: 66174679Sdas /* FreeBSD local: always return a quiet NaN */ 67174679Sdas u.L[0] = bits[0] | 0x7fc00000; 68174679Sdas break; 69174679Sdas 70112158Sdas case STRTOG_Denormal: 71112158Sdas u.L[0] = bits[0]; 72112158Sdas break; 73112158Sdas 74112158Sdas case STRTOG_Infinite: 75112158Sdas u.L[0] = 0x7f800000; 76112158Sdas break; 77112158Sdas 78112158Sdas case STRTOG_NaN: 79165743Sdas u.L[0] = f_QNAN; 80112158Sdas } 81112158Sdas if (k & STRTOG_Neg) 82112158Sdas u.L[0] |= 0x80000000L; 83112158Sdas return u.f; 84112158Sdas } 85227753Stheraven float 86227753Stheraven#ifdef KR_headers 87227753Stheravenstrtof(s, sp) CONST char *s; char **sp; 88227753Stheraven#else 89227753Stheravenstrtof(CONST char *s, char **sp) 90227753Stheraven#endif 91227753Stheraven{ 92227753Stheraven return strtof_l(s, sp, __get_locale()); 93227753Stheraven} 94227753Stheraven 95