projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 83c5e934 WS |
1 | /** |
| 2 | * Name: math.h | |
| 3 | * Purpose: Declarations/definitions of common math functions | |
| 4 | * Author: John Labenski and others | |
| 5 | * Modified by: | |
| 6 | * Created: 02/02/03 | |
| 7 | * RCS-ID: | |
| 99d80019 | 8 | * Copyright: (c) John Labenski |
| 83c5e934 WS |
9 | * Licence: wxWindows licence |
| 10 | */ | |
| 11 | ||
| 12 | /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */ | |
| a02afd14 VZ |
13 | |
| 14 | #ifndef _WX_MATH_H_ | |
| 15 | #define _WX_MATH_H_ | |
| 16 | ||
| a02afd14 VZ |
17 | #include "wx/defs.h" |
| 18 | ||
| 19edb09c WS |
19 | #include <math.h> |
| 20 | ||
| 21 | #ifndef M_PI | |
| 22 | #define M_PI 3.1415926535897932384626433832795 | |
| 23 | #endif | |
| 24 | ||
| 5f8ba10e | 25 | /* Scaling factors for various unit conversions */ |
| e2bcbdfb WS |
26 | #ifndef METRIC_CONVERSION_CONSTANT |
| 27 | #define METRIC_CONVERSION_CONSTANT 0.0393700787 | |
| 28 | #endif | |
| 29 | ||
| 30 | #ifndef mm2inches | |
| 31 | #define mm2inches (METRIC_CONVERSION_CONSTANT) | |
| 32 | #endif | |
| 33 | ||
| 34 | #ifndef inches2mm | |
| 35 | #define inches2mm (1/(mm2inches)) | |
| 36 | #endif | |
| 37 | ||
| 38 | #ifndef mm2twips | |
| 39 | #define mm2twips (METRIC_CONVERSION_CONSTANT*1440) | |
| 40 | #endif | |
| 41 | ||
| 42 | #ifndef twips2mm | |
| 43 | #define twips2mm (1/(mm2twips)) | |
| 44 | #endif | |
| 45 | ||
| 46 | #ifndef mm2pt | |
| 47 | #define mm2pt (METRIC_CONVERSION_CONSTANT*72) | |
| 48 | #endif | |
| 49 | ||
| 50 | #ifndef pt2mm | |
| 51 | #define pt2mm (1/(mm2pt)) | |
| 52 | #endif | |
| 53 | ||
| 54 | ||
| 83c5e934 | 55 | /* unknown __VISAGECC__, __SYMANTECCC__ */ |
| a02afd14 VZ |
56 | |
| 57 | #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__) | |
| 58 | #include <float.h> | |
| 59 | #define wxFinite(x) _finite(x) | |
| 60 | #elif defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \ | |
| 61 | defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \ | |
| 4e32eea1 | 62 | defined(__HPUX__)||defined(__MWERKS__) |
| a02afd14 VZ |
63 | #define wxFinite(x) finite(x) |
| 64 | #else | |
| 65 | #define wxFinite(x) ((x) == (x)) | |
| 66 | #endif | |
| 67 | ||
| 68 | ||
| 69 | #if defined(__VISUALC__)||defined(__BORLAND__) | |
| 70 | #define wxIsNaN(x) _isnan(x) | |
| 71 | #elif defined(__GNUG__)||defined(__GNUWIN32__)||defined(__DJGPP__)|| \ | |
| 72 | defined(__SGI_CC__)||defined(__SUNCC__)||defined(__XLC__)|| \ | |
| 4e32eea1 WS |
73 | defined(__HPUX__)||defined(__MWERKS__) |
| 74 | #define wxIsNaN(x) isnan(x) | |
| a02afd14 VZ |
75 | #else |
| 76 | #define wxIsNaN(x) ((x) != (x)) | |
| 77 | #endif | |
| 78 | ||
| 79 | ||
| 5f8ba10e | 80 | #endif /* _WX_MATH_H_ */ |