Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| 2 | /* s_ldexpf.c -- float version of s_ldexp.c. |
||
| 3 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
||
| 4 | */ |
||
| 5 | |||
| 6 | /* |
||
| 7 | * ==================================================== |
||
| 8 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
||
| 9 | * |
||
| 10 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
||
| 11 | * Permission to use, copy, modify, and distribute this |
||
| 12 | * software is freely granted, provided that this notice |
||
| 13 | * is preserved. |
||
| 14 | * ==================================================== |
||
| 15 | */ |
||
| 16 | |||
| 17 | #if defined(LIBM_SCCS) && !defined(lint) |
||
| 18 | static char rcsid[] = "$Id: s_ldexpf.c,v 1.1 1994/08/10 20:32:39 jtc Exp $"; |
||
| 19 | #endif |
||
| 20 | |||
| 21 | #include "math.h" |
||
| 22 | #include "math_private.h" |
||
| 23 | #include |
||
| 24 | |||
| 25 | #ifdef __STDC__ |
||
| 26 | float ldexpf(float value, int exp) |
||
| 27 | #else |
||
| 28 | float ldexpf(value, exp) |
||
| 29 | float value; int exp; |
||
| 30 | #endif |
||
| 31 | { |
||
| 32 | if(!finitef(value)||value==(float)0.0) return value; |
||
| 33 | value = scalbnf(value,exp); |
||
| 34 | if(!finitef(value)||value==(float)0.0) errno = ERANGE; |
||
| 35 | return value; |
||
| 36 | } |