f3a2a20311
Found with bin/find-unneeded-includes Only removal proposals are dealt with here. Change-Id: I62758fd7c9d932c5a390739774b112356006a937 Reviewed-on: https://gerrit.libreoffice.org/56062 Tested-by: Jenkins Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
154 lines
4.3 KiB
C++
154 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you 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 .
|
|
*/
|
|
|
|
#ifndef INCLUDED_SAL_MATHCONF_H
|
|
#define INCLUDED_SAL_MATHCONF_H
|
|
|
|
#include "osl/endian.h"
|
|
|
|
#if defined __sun
|
|
#include <ieeefp.h>
|
|
#endif /* __sun */
|
|
|
|
#if defined(__cplusplus) && ( defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L )
|
|
#include <cmath>
|
|
#endif
|
|
|
|
#if defined(IOS)
|
|
#if defined(__cplusplus)
|
|
#include <cmath>
|
|
#else
|
|
#include <math.h>
|
|
#endif
|
|
#endif
|
|
|
|
#if defined __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
/* Generally, the C standard guarantees that at program startup, "trapping or
|
|
stopping (if supported) is disabled on all [floating-point] exceptions"
|
|
(F.7.3/1 of the August 3, 1998 draft of C99), and that during program
|
|
execution, "a programmer can safely assume default modes (or be unaware of
|
|
them)" (7.6/2, footnote 161 of the August 3, 1998 draft of C99). Reportedly,
|
|
on Windows there are printer drivers that switch on exceptions. To avoid
|
|
problems, the SAL_MATH_FPEXCEPTIONS_OFF macro can be used to explicitly
|
|
switch off exceptions (on Windows).
|
|
*/
|
|
#if defined(_WIN32)
|
|
#define SAL_MATH_FPEXCEPTIONS_OFF() _control87( _MCW_EM, _MCW_EM )
|
|
#else /* WNT */
|
|
#define SAL_MATH_FPEXCEPTIONS_OFF()
|
|
#endif /* WNT */
|
|
|
|
|
|
/* SAL_MATH_FINITE(d): test double d on INFINITY, NaN et al. */
|
|
#if !defined __sun && !defined ANDROID \
|
|
&& defined(__cplusplus) \
|
|
&& ( defined(__GXX_EXPERIMENTAL_CXX0X__) \
|
|
|| __cplusplus >= 201103L \
|
|
|| defined(IOS) )
|
|
#define SAL_MATH_FINITE(d) std::isfinite(d)
|
|
#elif defined( IOS )
|
|
#define SAL_MATH_FINITE(d) isfinite(d)
|
|
#elif defined( WNT)
|
|
#define SAL_MATH_FINITE(d) _finite(d)
|
|
#elif defined(ANDROID) || defined LINUX || defined UNX
|
|
#define SAL_MATH_FINITE(d) finite(d)
|
|
#else /* WNT, LINUX, UNX */
|
|
#error "SAL_MATH_FINITE not defined"
|
|
#endif /* WNT, LINUX, UNX */
|
|
|
|
|
|
/* This needs to be fixed for non--IEEE-754 platforms: */
|
|
#if 1 /* IEEE 754 supported */
|
|
#if defined OSL_BIGENDIAN
|
|
|
|
/* IEEE 754 double structures for BigEndian */
|
|
union sal_math_Double
|
|
{
|
|
struct
|
|
{
|
|
unsigned sign : 1;
|
|
unsigned exponent :11;
|
|
unsigned fraction_hi :20;
|
|
unsigned fraction_lo :32;
|
|
} inf_parts;
|
|
struct
|
|
{
|
|
unsigned sign : 1;
|
|
unsigned exponent :11;
|
|
unsigned qnan_bit : 1;
|
|
unsigned bits :19;
|
|
unsigned fraction_lo :32;
|
|
} nan_parts;
|
|
struct
|
|
{
|
|
unsigned msw :32;
|
|
unsigned lsw :32;
|
|
} w32_parts;
|
|
double value;
|
|
};
|
|
|
|
#elif defined OSL_LITENDIAN
|
|
|
|
/* IEEE 754 double structures for LittleEndian */
|
|
union sal_math_Double
|
|
{
|
|
struct {
|
|
unsigned fraction_lo :32;
|
|
unsigned fraction_hi :20;
|
|
unsigned exponent :11;
|
|
unsigned sign : 1;
|
|
} inf_parts;
|
|
struct {
|
|
unsigned fraction_lo :32;
|
|
unsigned bits :19;
|
|
unsigned qnan_bit : 1;
|
|
unsigned exponent :11;
|
|
unsigned sign : 1;
|
|
} nan_parts;
|
|
struct
|
|
{
|
|
unsigned lsw :32;
|
|
unsigned msw :32;
|
|
} w32_parts;
|
|
double value;
|
|
};
|
|
|
|
#else /* OSL_BIGENDIAN, OSL_LITENDIAN */
|
|
|
|
#error "neither OSL_BIGENDIAN nor OSL_LITENDIAN"
|
|
|
|
#endif /* OSL_BIGENDIAN, OSL_LITENDIAN */
|
|
#else /* IEEE 754 supported */
|
|
|
|
#error "don't know how to handle IEEE 754"
|
|
|
|
#endif /* IEEE 754 supported */
|
|
|
|
|
|
#if defined __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* INCLUDED_SAL_MATHCONF_H */
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|