| | 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: |
| | 8 | * Copyright: (c) John Labenski |
| | 9 | * Licence: wxWindows licence |
| | 10 | */ |
| | 11 | |
| | 12 | /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */ |
| | 13 | |
| | 14 | #ifndef _WX_MATH_H_ |
| | 15 | #define _WX_MATH_H_ |
| | 16 | |
| | 17 | #include "wx/defs.h" |
| | 18 | |
| | 19 | #include <math.h> |
| | 20 | |
| | 21 | #ifndef M_PI |
| | 22 | #define M_PI 3.1415926535897932384626433832795 |
| | 23 | #endif |
| | 24 | |
| | 25 | /* Scaling factors for various unit conversions */ |
| | 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 | |
| | 55 | /* unknown __VISAGECC__, __SYMANTECCC__ */ |
| | 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__)|| \ |
| | 62 | defined(__HPUX__)||defined(__MWERKS__) |
| | 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__)|| \ |
| | 73 | defined(__HPUX__)||defined(__MWERKS__) |
| | 74 | #define wxIsNaN(x) isnan(x) |
| | 75 | #else |
| | 76 | #define wxIsNaN(x) ((x) != (x)) |
| | 77 | #endif |
| | 78 | |
| | 79 | |
| | 80 | #endif /* _WX_MATH_H_ */ |
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