69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
|
/****************************************************************
|
||
|
|
|
||
|
|
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 <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
static char *dir[4] = { "toward zero", "nearest", "toward +Infinity",
|
||
|
|
"toward -Infinity" };
|
||
|
|
|
||
|
|
int
|
||
|
|
#ifdef KR_headers
|
||
|
|
getround(r, s) int r; char *s;
|
||
|
|
#else
|
||
|
|
getround(int r, char *s)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
i = atoi(s+1);
|
||
|
|
if (i >= 0 && i < 4) {
|
||
|
|
printf("Rounding mode for strtor... ");
|
||
|
|
if (i == r)
|
||
|
|
printf("was and is %d (%s)\n", i, dir[i]);
|
||
|
|
else
|
||
|
|
printf("changed from %d (%s) to %d (%s)\n",
|
||
|
|
r, dir[r], i, dir[i]);
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
printf("Bad rounding direction %d: choose among\n", i);
|
||
|
|
for(i = 0; i < 4; i++)
|
||
|
|
printf("\t%d (%s)\n", i, dir[i]);
|
||
|
|
printf("Leaving rounding mode for strtor... at %d (%s)\n", r, dir[r]);
|
||
|
|
return r;
|
||
|
|
}
|