[833] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: templates.hh,v 1.10.8.1 2008/04/23 09:22:49 gcosmo Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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| 29 | // |
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| 30 | // |
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| 31 | // -*- C++ -*- |
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| 32 | // |
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| 33 | // ----------------------------------------------------------------------- |
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| 34 | // This file should define some platform dependent features and some |
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| 35 | // useful utilities. |
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| 36 | // ----------------------------------------------------------------------- |
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| 37 | |
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| 38 | // ======================================================================= |
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| 39 | // Gabriele Cosmo - Created: 5th September 1995 |
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| 40 | // Gabriele Cosmo - Minor change: 08/02/1996 |
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| 41 | // Gabriele Cosmo - Added DBL_MIN, FLT_MIN, DBL_DIG, |
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| 42 | // DBL_MAX, FLT_DIG, FLT_MAX : 12/04/1996 |
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| 43 | // Gabriele Cosmo - Removed boolean enum definition : 29/11/1996 |
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| 44 | // Gunter Folger - Added G4SwapPtr() and G4SwapObj() : 31/07/1997 |
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| 45 | // Gabriele Cosmo - Adapted signatures of min(), max() to |
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| 46 | // STL's ones, thanks to E.Tcherniaev : 31/07/1997 |
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| 47 | // Gabriele Cosmo, |
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| 48 | // Evgueni Tcherniaev - Migrated to CLHEP: 04/12/1997 |
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| 49 | // ======================================================================= |
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| 50 | |
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| 51 | #ifndef templates_h |
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| 52 | #define templates_h 1 |
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| 53 | |
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| 54 | #include <limits> |
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| 55 | #include <climits> |
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| 56 | |
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| 57 | // |
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| 58 | // If HIGH_PRECISION is defined to TRUE (ie. != 0) then the type "Float" |
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| 59 | // is typedefed to "double". If it is FALSE (ie. 0) it is typedefed |
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| 60 | // to "float". |
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| 61 | // |
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| 62 | #ifndef HIGH_PRECISION |
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| 63 | #define HIGH_PRECISION 1 |
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| 64 | #endif |
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| 65 | |
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| 66 | #if HIGH_PRECISION |
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| 67 | typedef double Float; |
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| 68 | #else |
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| 69 | typedef float Float; |
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| 70 | #endif |
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| 71 | |
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| 72 | // Following values have been taken from limits.h |
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| 73 | // and temporarly defined for portability on HP-UX. |
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| 74 | |
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| 75 | #ifndef DBL_MIN /* Min decimal value of a double */ |
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| 76 | #define DBL_MIN std::numeric_limits<double>::min() // 2.2250738585072014e-308 |
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| 77 | #endif |
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| 78 | |
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| 79 | #ifndef DBL_DIG /* Digits of precision of a double */ |
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| 80 | #define DBL_DIG std::numeric_limits<double>::digits10 // 15 |
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| 81 | #endif |
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| 82 | |
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| 83 | #ifndef DBL_MAX /* Max decimal value of a double */ |
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| 84 | #define DBL_MAX std::numeric_limits<double>::max() // 1.7976931348623157e+308 |
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| 85 | #endif |
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| 86 | |
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| 87 | #ifndef DBL_EPSILON |
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| 88 | #define DBL_EPSILON std::numeric_limits<double>::epsilon() |
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| 89 | #endif // 2.2204460492503131e-16 |
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| 90 | |
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| 91 | #ifndef FLT_MIN /* Min decimal value of a float */ |
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| 92 | #define FLT_MIN std::numeric_limits<float>::min() // 1.17549435e-38F |
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| 93 | #endif |
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| 94 | |
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| 95 | #ifndef FLT_DIG /* Digits of precision of a float */ |
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| 96 | #define FLT_DIG std::numeric_limits<float>::digits10 // 6 |
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| 97 | #endif |
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| 98 | |
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| 99 | #ifndef FLT_MAX /* Max decimal value of a float */ |
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| 100 | #define FLT_MAX std::numeric_limits<float>::max() // 3.40282347e+38F |
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| 101 | #endif |
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| 102 | |
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| 103 | #ifndef FLT_EPSILON |
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| 104 | #define FLT_EPSILON std::numeric_limits<float>::epsilon() |
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| 105 | #endif // 1.192092896e-07F |
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| 106 | |
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| 107 | #ifndef MAXFLOAT /* Max decimal value of a float */ |
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| 108 | #define MAXFLOAT std::numeric_limits<float>::max() // 3.40282347e+38F |
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| 109 | #endif |
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| 110 | |
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| 111 | //--------------------------------- |
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| 112 | |
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| 113 | template <class T> |
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| 114 | inline void G4SwapPtr(T* a, T* b) { |
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| 115 | T* tmp=a; |
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| 116 | a = b; |
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| 117 | b = tmp; |
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| 118 | } |
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| 119 | |
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| 120 | template <class T> |
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| 121 | inline void G4SwapObj(T* a, T* b) { |
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| 122 | T tmp= *a; |
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| 123 | *a = *b; |
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| 124 | *b = tmp; |
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| 125 | } |
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| 126 | |
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| 127 | //----------------------------- |
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| 128 | |
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| 129 | #ifndef G4_SQR_DEFINED |
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| 130 | #define G4_SQR_DEFINED |
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| 131 | #ifdef sqr |
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| 132 | #undef sqr |
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| 133 | #endif |
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| 134 | |
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| 135 | template <class T> |
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| 136 | inline T sqr(const T& x) |
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| 137 | { |
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| 138 | return x*x; |
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| 139 | } |
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| 140 | #endif |
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| 141 | |
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| 142 | #ifdef G4_ABS_DEFINED |
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| 143 | #ifdef abs |
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| 144 | #undef abs |
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| 145 | #endif |
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| 146 | template <class T> |
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| 147 | inline T std::abs(const T& a) |
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| 148 | { |
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| 149 | return a < 0 ? -a : a; |
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| 150 | } |
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| 151 | #endif |
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| 152 | |
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| 153 | #endif // templates_h |
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