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146 lines
4.0 KiB
146 lines
4.0 KiB
/**************************************************************** |
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The author of this software is David M. Gay. |
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Copyright (C) 1998-2001 by Lucent Technologies |
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All Rights Reserved |
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Permission to use, copy, modify, and distribute this software and |
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its documentation for any purpose and without fee is hereby |
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granted, provided that the above copyright notice appear in all |
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copies and that both that the copyright notice and this |
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permission notice and warranty disclaimer appear in supporting |
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documentation, and that the name of Lucent or any of its entities |
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not be used in advertising or publicity pertaining to |
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distribution of the software without specific, written prior |
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permission. |
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LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. |
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IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY |
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER |
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IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF |
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THIS SOFTWARE. |
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****************************************************************/ |
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/* Please send bug reports to |
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David M. Gay |
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Bell Laboratories, Room 2C-463 |
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600 Mountain Avenue |
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Murray Hill, NJ 07974-0636 |
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U.S.A. |
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dmg@bell-labs.com |
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*/ |
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/* Test program for g_dfmt, strtoId, strtod, strtopd, and strtord. |
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* |
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* Inputs (on stdin): |
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* r rounding_mode |
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* n ndig |
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* number |
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* #hex0 hex1 |
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* |
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* rounding_mode values: |
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* 0 = toward zero |
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* 1 = nearest |
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* 2 = toward +Infinity |
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* 3 = toward -Infinity |
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* |
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* where number is a decimal floating-point number, |
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* hex0 is a string of Hex <= 8 digits for the most significant |
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* word of the number, hex1 is a similar string for the other |
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* (least significant) word, and ndig is a parameters to g_dfmt. |
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*/ |
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#include "gdtoaimp.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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extern int getround ANSI((int,char*)); |
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static char ibuf[2048], obuf[1024]; |
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#define U (unsigned long) |
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int |
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main(Void) |
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{ |
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ULong *L; |
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char *s, *se, *se1; |
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double f, f1, fI[2]; |
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int i, i1, ndig = 0, r = 1; |
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long LL[2]; |
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L = (ULong*)&f; |
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while( (s = fgets(ibuf, sizeof(ibuf), stdin)) !=0) { |
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while(*s <= ' ') |
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if (!*s++) |
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continue; |
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switch(*s) { |
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case 'r': |
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r = getround(r, s); |
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continue; |
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case 'n': |
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i = s[1]; |
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if (i <= ' ' || i >= '0' && i <= '9') { |
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ndig = atoi(s+1); |
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continue; |
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} |
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break; /* nan? */ |
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case '#': |
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LL[0] = L[_0]; |
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LL[1] = L[_1]; |
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sscanf(s+1, "%lx %lx", &LL[0], &LL[1]); |
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L[_0] = LL[0]; |
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L[_1] = LL[1]; |
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printf("\nInput: %s", ibuf); |
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printf("--> f = #%lx %lx\n", (long)L[_0], (long)L[_1]); |
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goto fmt_test; |
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} |
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printf("\nInput: %s", ibuf); |
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i = strtord(ibuf, &se, r, &f); |
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if (r == 1) { |
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if ((f != strtod(ibuf, &se1) || se1 != se)) |
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printf("***strtod and strtord disagree!!\n"); |
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i1 = strtopd(ibuf, &se, &f1); |
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if (i != i1 || f != f1 || se != se1) |
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printf("***strtord and strtopd disagree!!\n"); |
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} |
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printf("strtod consumes %d bytes and returns %d with f = %.17g = #%lx %lx\n", |
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(int)(se-ibuf), i, f, U L[_0], U L[_1]); |
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fmt_test: |
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se = g_dfmt(obuf, &f, ndig, sizeof(obuf)); |
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printf("g_dfmt(%d) gives %d bytes: \"%s\"\n\n", |
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ndig, (int)(se-obuf), se ? obuf : "<null>"); |
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if (*s == '#') |
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continue; |
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printf("strtoId returns %d,", strtoId(ibuf, &se, fI, &fI[1])); |
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printf(" consuming %d bytes.\n", (int)(se-ibuf)); |
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if (fI[0] == fI[1]) { |
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if (fI[0] == f) |
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printf("fI[0] == fI[1] == strtod\n"); |
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else |
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printf("fI[0] == fI[1] = #%lx %lx = %.17g\n", |
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U ((ULong*)fI)[_0], U ((ULong*)fI)[_1], |
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fI[0]); |
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} |
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else { |
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printf("fI[0] = #%lx %lx = %.17g\n", |
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U ((ULong*)fI)[_0], U ((ULong*)fI)[_1], fI[0]); |
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printf("fI[1] = #%lx %lx = %.17g\n", |
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U ((ULong*)&fI[1])[_0], U ((ULong*)&fI[1])[_1], |
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fI[1]); |
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if (fI[0] == f) |
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printf("fI[0] == strtod\n"); |
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else if (fI[1] == f) |
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printf("fI[1] == strtod\n"); |
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else |
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printf("**** Both differ from strtod ****\n"); |
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} |
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printf("\n"); |
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} |
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return 0; |
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}
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