|
Last change
on this file was 2006, checked in by bird, 20 years ago |
|
Initial revision
|
-
Property cvs2svn:cvs-rev
set to
1.1
-
Property svn:eol-style
set to
native
-
Property svn:executable
set to
*
|
|
File size:
775 bytes
|
| Line | |
|---|
| 1 | /* @(#)s_finite.c 5.1 93/09/24 */
|
|---|
| 2 | /*
|
|---|
| 3 | * ====================================================
|
|---|
| 4 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|---|
| 5 | *
|
|---|
| 6 | * Developed at SunPro, a Sun Microsystems, Inc. business.
|
|---|
| 7 | * Permission to use, copy, modify, and distribute this
|
|---|
| 8 | * software is freely granted, provided that this notice
|
|---|
| 9 | * is preserved.
|
|---|
| 10 | * ====================================================
|
|---|
| 11 | */
|
|---|
| 12 |
|
|---|
| 13 | #ifndef lint
|
|---|
| 14 | static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_finite.c,v 1.8 2003/07/23 04:53:46 peter Exp $";
|
|---|
| 15 | #endif
|
|---|
| 16 |
|
|---|
| 17 | /*
|
|---|
| 18 | * finite(x) returns 1 is x is finite, else 0;
|
|---|
| 19 | * no branching!
|
|---|
| 20 | */
|
|---|
| 21 |
|
|---|
| 22 | #include "math.h"
|
|---|
| 23 | #include "math_private.h"
|
|---|
| 24 |
|
|---|
| 25 | int finite(double x)
|
|---|
| 26 | {
|
|---|
| 27 | int32_t hx;
|
|---|
| 28 | GET_HIGH_WORD(hx,x);
|
|---|
| 29 | return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);
|
|---|
| 30 | }
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
