mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-11 03:52:59 +00:00
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
|
/* @(#)s_pow10.c 5.1 93/09/24 */
|
||
|
|
/* Modification from s_exp10.c Yaakov Selkowitz 2007. */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ====================================================
|
||
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||
|
|
* Permission to use, copy, modify, and distribute this
|
||
|
|
* software is freely granted, provided that this notice
|
||
|
|
* is preserved.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
FUNCTION
|
||
|
|
<<pow10>>, <<pow10f>>---exponential
|
||
|
|
INDEX
|
||
|
|
pow10
|
||
|
|
INDEX
|
||
|
|
pow10f
|
||
|
|
|
||
|
|
ANSI_SYNOPSIS
|
||
|
|
#include <math.h>
|
||
|
|
double pow10(double <[x]>);
|
||
|
|
float pow10f(float <[x]>);
|
||
|
|
|
||
|
|
TRAD_SYNOPSIS
|
||
|
|
#include <math.h>
|
||
|
|
double pow10(<[x]>);
|
||
|
|
double <[x]>;
|
||
|
|
|
||
|
|
float pow10f(<[x]>);
|
||
|
|
float <[x]>;
|
||
|
|
|
||
|
|
DESCRIPTION
|
||
|
|
<<pow10>> and <<pow10f>> calculate 10 ^ <[x]>, that is,
|
||
|
|
@ifnottex
|
||
|
|
10 raised to the power <[x]>.
|
||
|
|
@end ifnottex
|
||
|
|
@tex
|
||
|
|
$10^x$
|
||
|
|
@end tex
|
||
|
|
|
||
|
|
You can use the (non-ANSI) function <<matherr>> to specify
|
||
|
|
error handling for these functions.
|
||
|
|
|
||
|
|
RETURNS
|
||
|
|
On success, <<pow10>> and <<pow10f>> return the calculated value.
|
||
|
|
If the result underflows, the returned value is <<0>>. If the
|
||
|
|
result overflows, the returned value is <<HUGE_VAL>>. In
|
||
|
|
either case, <<errno>> is set to <<ERANGE>>.
|
||
|
|
|
||
|
|
PORTABILITY
|
||
|
|
<<pow10>> and <<pow10f>> are GNU extensions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* wrapper pow10(x)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#undef pow10
|
||
|
|
#include "fdlibm.h"
|
||
|
|
#include <errno.h>
|
||
|
|
#include <math.h>
|
||
|
|
|
||
|
|
#ifndef _DOUBLE_IS_32BITS
|
||
|
|
|
||
|
|
#ifdef __STDC__
|
||
|
|
double pow10(double x) /* wrapper pow10 */
|
||
|
|
#else
|
||
|
|
double pow10(x) /* wrapper pow10 */
|
||
|
|
double x;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
return pow(10.0, x);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* defined(_DOUBLE_IS_32BITS) */
|