From cc36ccd13b36b705dfb09d90e8de63e49734f8d4 Mon Sep 17 00:00:00 2001 From: David Schultz Date: Wed, 12 Mar 2003 20:18:32 +0000 Subject: Initial import of David Gay's gdtoa library for conversion between strings and floating point. --- contrib/gdtoa/strtoIx.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 contrib/gdtoa/strtoIx.c (limited to 'contrib/gdtoa/strtoIx.c') diff --git a/contrib/gdtoa/strtoIx.c b/contrib/gdtoa/strtoIx.c new file mode 100644 index 000000000000..d699f04c8122 --- /dev/null +++ b/contrib/gdtoa/strtoIx.c @@ -0,0 +1,70 @@ +/**************************************************************** + +The author of this software is David M. Gay. + +Copyright (C) 1998 by Lucent Technologies +All Rights Reserved + +Permission to use, copy, modify, and distribute this software and +its documentation for any purpose and without fee is hereby +granted, provided that the above copyright notice appear in all +copies and that both that the copyright notice and this +permission notice and warranty disclaimer appear in supporting +documentation, and that the name of Lucent or any of its entities +not be used in advertising or publicity pertaining to +distribution of the software without specific, written prior +permission. + +LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, +INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. +IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY +SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER +IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF +THIS SOFTWARE. + +****************************************************************/ + +/* Please send bug reports to + David M. Gay + Bell Laboratories, Room 2C-463 + 600 Mountain Avenue + Murray Hill, NJ 07974-0636 + U.S.A. + dmg@bell-labs.com + */ + +#include "gdtoaimp.h" + + int +#ifdef KR_headers +strtoIx(s, sp, a, b) CONST char *s; char **sp; void *a; void *b; +#else +strtoIx(CONST char *s, char **sp, void *a, void *b) +#endif +{ + static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; + Long exp[2]; + Bigint *B[2]; + int k, rv[2]; + UShort *L = (UShort *)a, *M = (UShort *)b; + + B[0] = Balloc(1); + B[0]->wds = 2; + k = strtoIg(s, sp, &fpi, exp, B, rv); + ULtox(L, B[0]->x, exp[0], rv[0]); + Bfree(B[0]); + if (B[1]) { + ULtox(M, B[1]->x, exp[1], rv[1]); + Bfree(B[1]); + } + else { + M[0] = L[0]; + M[1] = L[1]; + M[2] = L[2]; + M[3] = L[3]; + M[4] = L[4]; + } + return k; + } -- cgit v1.2.3