home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Languguage OS 2
/
Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
/
gnu
/
glibc108.zip
/
glibc108
/
sysdeps
/
generic
/
mathimpl.h
< prev
next >
Wrap
C/C++ Source or Header
|
1993-05-15
|
4KB
|
129 lines
/* This part here added by roland@prep.ai.mit.edu for the GNU C library. */
#include <math.h> /* Done first so we can #undef. */
#include <endian.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#undef national
#define national
#endif
#undef isinf
#define isinf __isinf
#undef isnan
#define isnan __isnan
#undef infnan
#define infnan __infnan
#undef copysign
#define copysign __copysign
#undef scalb
#define scalb __scalb
#undef drem
#define drem __drem
#undef logb
#define logb __logb
#undef __finite
#undef finite
#define finite __finite
#undef expm1
#define expm1 __expm1
#define exp__E __exp__E
#define log__L __log__L
/*
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* 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.
*
* @(#)mathimpl.h 5.4 (Berkeley) 3/5/91
*/
#include <sys/cdefs.h>
#include <math.h>
#if defined(vax)||defined(tahoe)
/* Deal with different ways to concatenate in cpp */
# ifdef __STDC__
# define cat3(a,b,c) a ## b ## c
# else
# define cat3(a,b,c) a/**/b/**/c
# endif
/* Deal with vax/tahoe byte order issues */
# ifdef vax
# define cat3t(a,b,c) cat3(a,b,c)
# else
# define cat3t(a,b,c) cat3(a,c,b)
# endif
# define vccast(name) (*(const double *)(cat3(name,,x)))
/*
* Define a constant to high precision on a Vax or Tahoe.
*
* Args are the name to define, the decimal floating point value,
* four 16-bit chunks of the float value in hex
* (because the vax and tahoe differ in float format!), the power
* of 2 of the hex-float exponent, and the hex-float mantissa.
* Most of these arguments are not used at compile time; they are
* used in a post-check to make sure the constants were compiled
* correctly.
*
* People who want to use the constant will have to do their own
* #define foo vccast(foo)
* since CPP cannot do this for them from inside another macro (sigh).
* We define "vccast" if this needs doing.
*/
# define vc(name, value, x1,x2,x3,x4, bexp, xval) \
static const long cat3(name,,x)[] = {cat3t(0x,x1,x2), cat3t(0x,x3,x4)};
# define ic(name, value, bexp, xval) ;
#else /* vax or tahoe */
/* Hooray, we have an IEEE machine */
# undef vccast
# define vc(name, value, x1,x2,x3,x4, bexp, xval) ;
# define ic(name, value, bexp, xval) \
static const double name = value;
#endif /* defined(vax)||defined(tahoe) */
/*
* Functions internal to the math package, yet not static.
*/
extern double exp__E();
extern double log__L();