minix/lib/libc/gdtoa/strtord.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

96 lines
2.5 KiB
C

/* $NetBSD: strtord.c,v 1.5 2013/04/18 21:54:11 joerg Exp $ */
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 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 (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
void
#ifdef KR_headers
ULtod(L, bits, expt, k) ULong *L; ULong *bits; Long expt; int k;
#else
ULtod(ULong *L, ULong *bits, Long expt, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = 0;
break;
case STRTOG_Denormal:
L[_1] = bits[0];
L[_0] = bits[1];
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_1] = bits[0];
L[_0] = (bits[1] & ~0x100000) | ((expt + 0x3ff + 52) << 20);
break;
case STRTOG_Infinite:
L[_0] = 0x7ff00000;
L[_1] = 0;
break;
#ifdef d_QNAN0
case STRTOG_NaN:
L[0] = d_QNAN0;
L[1] = d_QNAN1;
#endif
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
}
int
strtord(CONST char *s, char **sp, int rounding, double *d, locale_t loc)
{
static CONST FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
CONST FPI *fpi;
FPI fpi1;
ULong bits[2];
Long expt;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &expt, bits, loc);
if (k == STRTOG_NoMemory)
return k;
ULtod((/* LINTED */(U*)d)->L, bits, expt, k);
return k;
}