Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Separate isnan() into a separate module, and make isinf()/isnan() use ieee.h.

Browse Source
This commit is contained in:
mycroft 1999-08-29 18:11:28 +00:00
parent 9071f9ee14
commit c8190acc41
2 changed files with 18 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/libc/arch/ns32k/gen/Makefile.inc
View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile.inc,v 1.9 1999/01/22 14:22:36 jonb Exp $
# $NetBSD: Makefile.inc,v 1.10 1999/08/29 18:11:28 mycroft Exp $
# objects built from assembler sources (need lint stubs)
ASSRCS+=alloca.S fabs.S frexp.S ldexp.S modf.S
@ -12,4 +12,4 @@ SRCS+= setjmp.S sigsetjmp.S
# objects built from C sources
SRCS+= flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
fpsetround.c fpsetsticky.c infinity.c isinf.c bswap64.c
fpsetround.c fpsetsticky.c infinity.c isinf.c isnan.c bswap64.c

44
lib/libc/arch/ns32k/gen/isinf.c
View File

@ -1,8 +1,12 @@
/* $NetBSD: isinf.c,v 1.7 1998/11/14 19:31:02 christos Exp $ */
/* $NetBSD: isinf.c,v 1.8 1999/08/29 18:11:28 mycroft Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -31,50 +35,34 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Header: isinf.c,v 1.1 91/07/08 19:03:34 torek Exp
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)isinf.c 5.1 (Berkeley) 3/18/91";
static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: isinf.c,v 1.7 1998/11/14 19:31:02 christos Exp $");
__RCSID("$NetBSD: isinf.c,v 1.8 1999/08/29 18:11:28 mycroft Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <sys/types.h>
#include <machine/ieee.h>
#include <math.h>
#ifdef __weak_alias
__weak_alias(isnan,_isnan);
__weak_alias(isinf,_isinf);
#endif
int
isnan(d)
double d;
{
register struct IEEEdp {
u_int manl : 32;
u_int manh : 20;
u_int exp : 11;
u_int sign : 1;
} *p = (struct IEEEdp *)(void *)&d;
return(p->exp == 2047 && (p->manh || p->manl));
}
int
isinf(d)
double d;
{
register struct IEEEdp {
u_int manl : 32;
u_int manh : 20;
u_int exp : 11;
u_int sign : 1;
} *p = (struct IEEEdp *)(void *)&d;
register struct ieee_double *p = (struct ieee_double *)(void *)&d;
return(p->exp == 2047 && !p->manh && !p->manl);
return (p->dbl_exp == DBL_EXP_INFNAN &&
(p->dbl_frach == 0 && p->dbl_fracl == 0));
}