strtoIdd.c revision 112158
1112158Sdas/**************************************************************** 2112158Sdas 3112158SdasThe author of this software is David M. Gay. 4112158Sdas 5112158SdasCopyright (C) 1998 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 29112158Sdas/* Please send bug reports to 30112158Sdas David M. Gay 31112158Sdas Bell Laboratories, Room 2C-463 32112158Sdas 600 Mountain Avenue 33112158Sdas Murray Hill, NJ 07974-0636 34112158Sdas U.S.A. 35112158Sdas dmg@bell-labs.com 36112158Sdas */ 37112158Sdas 38112158Sdas#include "gdtoaimp.h" 39112158Sdas 40112158Sdas int 41112158Sdas#ifdef KR_headers 42112158SdasstrtoIdd(s, sp, f0, f1) CONST char *s; char **sp; double *f0, *f1; 43112158Sdas#else 44112158SdasstrtoIdd(CONST char *s, char **sp, double *f0, double *f1) 45112158Sdas#endif 46112158Sdas{ 47112158Sdas#ifdef Sudden_Underflow 48112158Sdas static FPI fpi = { 106, 1-1023, 2046-1023-106+1, 1, 1 }; 49112158Sdas#else 50112158Sdas static FPI fpi = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 }; 51112158Sdas#endif 52112158Sdas Long exp[2]; 53112158Sdas Bigint *B[2]; 54112158Sdas int k, rv[2]; 55112158Sdas 56112158Sdas B[0] = Balloc(2); 57112158Sdas B[0]->wds = 4; 58112158Sdas k = strtoIg(s, sp, &fpi, exp, B, rv); 59112158Sdas ULtodd((ULong*)f0, B[0]->x, exp[0], rv[0]); 60112158Sdas Bfree(B[0]); 61112158Sdas if (B[1]) { 62112158Sdas ULtodd((ULong*)f1, B[1]->x, exp[1], rv[1]); 63112158Sdas Bfree(B[1]); 64112158Sdas } 65112158Sdas else { 66112158Sdas ((ULong*)f1)[0] = ((ULong*)f0)[0]; 67112158Sdas ((ULong*)f1)[1] = ((ULong*)f0)[1]; 68112158Sdas ((ULong*)f1)[2] = ((ULong*)f0)[2]; 69112158Sdas ((ULong*)f1)[3] = ((ULong*)f0)[3]; 70112158Sdas } 71112158Sdas return k; 72112158Sdas } 73