/usr/include/wx-3.0/wx/math.h is in wx3.0-headers 3.0.4+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | /**
* Name: wx/math.h
* Purpose: Declarations/definitions of common math functions
* Author: John Labenski and others
* Modified by:
* Created: 02/02/03
* Copyright: (c) John Labenski
* Licence: wxWindows licence
*/
/* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
#ifndef _WX_MATH_H_
#define _WX_MATH_H_
#include "wx/defs.h"
#ifdef wxNEEDS_STRICT_ANSI_WORKAROUNDS
/*
In addition to declaring _finite() ourselves below, we also must work
around a compilation error in MinGW standard header itself, see
https://sourceforge.net/p/mingw/bugs/2250/
*/
#ifndef __NO_INLINE__
#define __NO_INLINE__
#endif
#endif
#include <math.h>
#ifndef M_PI
#define M_PI 3.1415926535897932384626433832795
#endif
/* Scaling factors for various unit conversions: 1 inch = 2.54 cm */
#ifndef METRIC_CONVERSION_CONSTANT
#define METRIC_CONVERSION_CONSTANT (1/25.4)
#endif
#ifndef mm2inches
#define mm2inches (METRIC_CONVERSION_CONSTANT)
#endif
#ifndef inches2mm
#define inches2mm (1/(mm2inches))
#endif
#ifndef mm2twips
#define mm2twips (METRIC_CONVERSION_CONSTANT*1440)
#endif
#ifndef twips2mm
#define twips2mm (1/(mm2twips))
#endif
#ifndef mm2pt
#define mm2pt (METRIC_CONVERSION_CONSTANT*72)
#endif
#ifndef pt2mm
#define pt2mm (1/(mm2pt))
#endif
#ifdef __cplusplus
/*
Things are simple with C++11: we have everything we need in std.
Eventually we will only have this section and not the legacy stuff below.
*/
#if __cplusplus >= 201103
#include <cmath>
#define wxFinite(x) std::isfinite(x)
#define wxIsNaN(x) std::isnan(x)
#else /* C++98 */
#if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
#include <float.h>
#define wxFinite(x) _finite(x)
#elif defined(__MINGW64_TOOLCHAIN__) || defined(__clang__)
/*
add more compilers with C99 support here: using C99 isfinite() is
preferable to using BSD-ish finite()
*/
#if defined(_GLIBCXX_CMATH) || defined(_LIBCPP_CMATH)
// these <cmath> headers #undef isfinite
#define wxFinite(x) std::isfinite(x)
#else
#define wxFinite(x) isfinite(x)
#endif
#elif defined(wxNEEDS_STRICT_ANSI_WORKAROUNDS)
wxDECL_FOR_STRICT_MINGW32(int, _finite, (double));
#define wxFinite(x) _finite(x)
#elif ( defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \
defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \
defined(__HPUX__) ) && ( !defined(wxOSX_USE_IPHONE) || wxOSX_USE_IPHONE == 0 )
#ifdef __SOLARIS__
#include <ieeefp.h>
#endif
#define wxFinite(x) finite(x)
#else
#define wxFinite(x) ((x) == (x))
#endif
#if defined(__VISUALC__)||defined(__BORLAND__)
#define wxIsNaN(x) _isnan(x)
#elif defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \
defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \
defined(__HPUX__)
#define wxIsNaN(x) isnan(x)
#else
#define wxIsNaN(x) ((x) != (x))
#endif
#endif /* C++11/C++98 */
#ifdef __INTELC__
inline bool wxIsSameDouble(double x, double y)
{
// VZ: this warning, given for operators==() and !=() is not wrong, as ==
// shouldn't be used with doubles, but we get too many of them and
// removing these operators is probably not a good idea
//
// Maybe we should always compare doubles up to some "epsilon" precision
#pragma warning(push)
// floating-point equality and inequality comparisons are unreliable
#pragma warning(disable: 1572)
return x == y;
#pragma warning(pop)
}
#else /* !__INTELC__ */
wxGCC_WARNING_SUPPRESS(float-equal)
inline bool wxIsSameDouble(double x, double y) { return x == y; }
wxGCC_WARNING_RESTORE(float-equal)
#endif /* __INTELC__/!__INTELC__ */
inline bool wxIsNullDouble(double x) { return wxIsSameDouble(x, 0.); }
inline int wxRound(double x)
{
wxASSERT_MSG( x > INT_MIN - 0.5 && x < INT_MAX + 0.5,
wxT("argument out of supported range") );
#if defined(HAVE_ROUND)
return int(round(x));
#else
return (int)(x < 0 ? x - 0.5 : x + 0.5);
#endif
}
#endif /* __cplusplus */
#if defined(__WINDOWS__) && !defined(__WXWINCE__)
#define wxMulDivInt32( a , b , c ) ::MulDiv( a , b , c )
#else
#define wxMulDivInt32( a , b , c ) (wxRound((a)*(((wxDouble)b)/((wxDouble)c))))
#endif
#if wxUSE_APPLE_IEEE
#ifdef __cplusplus
extern "C" {
#endif
/* functions from common/extended.c */
WXDLLIMPEXP_BASE wxFloat64 wxConvertFromIeeeExtended(const wxInt8 *bytes);
WXDLLIMPEXP_BASE void wxConvertToIeeeExtended(wxFloat64 num, wxInt8 *bytes);
/* use wxConvertFromIeeeExtended() and wxConvertToIeeeExtended() instead */
#if WXWIN_COMPATIBILITY_2_8
wxDEPRECATED( WXDLLIMPEXP_BASE wxFloat64 ConvertFromIeeeExtended(const wxInt8 *bytes) );
wxDEPRECATED( WXDLLIMPEXP_BASE void ConvertToIeeeExtended(wxFloat64 num, wxInt8 *bytes) );
#endif
#ifdef __cplusplus
}
#endif
#endif /* wxUSE_APPLE_IEEE */
#endif /* _WX_MATH_H_ */
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