mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is based on work under the following copyright and permission
|
|
* notice:
|
|
*
|
|
* Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
*
|
|
* @(#)fdlibm.h 1.5 04/04/22
|
|
*/
|
|
|
|
#ifndef JERRY_MATH_INTERNAL_H
|
|
#define JERRY_MATH_INTERNAL_H
|
|
|
|
/* Sometimes it's necessary to define __LITTLE_ENDIAN explicitly
|
|
but these catch some common cases. */
|
|
|
|
#ifndef __LITTLE_ENDIAN
|
|
/* Check if compiler has byte order macro. Some older versions do not.
|
|
* If byte order is supported and set to little or target is among common
|
|
* cases checked define __LITTLE_ENDIAN.
|
|
*/
|
|
#if (defined(i386) || defined(__i386) || defined(__i386__) || defined(i486) || defined(__i486) || defined(__i486__) \
|
|
|| defined(intel) || defined(x86) || defined(i86pc) || defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) \
|
|
|| defined(__alpha) || defined(__osf__) || defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) \
|
|
|| defined(_M_ARM) || defined(_M_ARM64) || defined(__xtensa__) || defined(__MIPSEL)) \
|
|
|| (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
|
|
#define __LITTLE_ENDIAN
|
|
#endif /* platform defines */
|
|
#endif /* !__LITTLE_ENDIAN */
|
|
|
|
#ifdef __LITTLE_ENDIAN
|
|
#define __HI(x) *(1 + (const int *) &x)
|
|
#define __LO(x) *(const int *) &x
|
|
typedef union
|
|
{
|
|
double dbl;
|
|
struct
|
|
{
|
|
int lo;
|
|
int hi;
|
|
} as_int;
|
|
} double_accessor;
|
|
#else /* !__LITTLE_ENDIAN */
|
|
#define __HI(x) *(const int *) &x
|
|
#define __LO(x) *(1 + (const int *) &x)
|
|
|
|
typedef union
|
|
{
|
|
double dbl;
|
|
struct
|
|
{
|
|
int hi;
|
|
int lo;
|
|
} as_int;
|
|
} double_accessor;
|
|
#endif /* __LITTLE_ENDIAN */
|
|
|
|
#ifndef NAN
|
|
#ifdef _MSC_VER
|
|
#define INFINITY ((float) (1e+300 * 1e+300)) /* 1e+300*1e+300 must overflow */
|
|
#define NAN ((float) (INFINITY * 0.0f))
|
|
#else /* !_MSC_VER */
|
|
#define INFINITY ((float) (1.0 / 0.0))
|
|
#define NAN ((float) (0.0 / 0.0))
|
|
#endif /* _MSC_VER */
|
|
#endif /* !NAN */
|
|
|
|
/*
|
|
* ANSI/POSIX
|
|
*/
|
|
double acos (double x);
|
|
double asin (double x);
|
|
double atan (double x);
|
|
double atan2 (double y, double x);
|
|
double cos (double x);
|
|
double sin (double x);
|
|
double tan (double x);
|
|
|
|
double cosh (double x);
|
|
double sinh (double x);
|
|
double tanh (double x);
|
|
|
|
double acosh (double x);
|
|
double asinh (double x);
|
|
double atanh (double x);
|
|
|
|
double exp (double x);
|
|
double expm1 (double x);
|
|
double log (double x);
|
|
double log1p (double x);
|
|
double log2 (double x);
|
|
double log10 (double);
|
|
|
|
double pow (double x, double y);
|
|
double sqrt (double x);
|
|
double cbrt (double);
|
|
|
|
double ceil (double x);
|
|
double fabs (double x);
|
|
double floor (double x);
|
|
double fmod (double x, double y);
|
|
|
|
double nextafter (double x, double y);
|
|
|
|
/*
|
|
* Functions callable from C, intended to support IEEE arithmetic.
|
|
*/
|
|
double copysign (double x, double y);
|
|
double scalbn (double x, int n);
|
|
|
|
#endif /* !JERRY_MATH_INTERNAL_H */
|