1 | // -*- C++ -*- |
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2 | /*************************************************************************** |
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3 | * blitz/compiler.h Compiler specific directives and kludges |
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4 | * |
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5 | * Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org> |
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6 | * |
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7 | * This file is a part of Blitz. |
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8 | * |
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9 | * Blitz is free software: you can redistribute it and/or modify |
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10 | * it under the terms of the GNU Lesser General Public License |
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11 | * as published by the Free Software Foundation, either version 3 |
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12 | * of the License, or (at your option) any later version. |
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13 | * |
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14 | * Blitz is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU Lesser General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU Lesser General Public |
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20 | * License along with Blitz. If not, see <http://www.gnu.org/licenses/>. |
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21 | * |
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22 | * Suggestions: blitz-devel@lists.sourceforge.net |
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23 | * Bugs: blitz-support@lists.sourceforge.net |
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24 | * |
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25 | * For more information, please see the Blitz++ Home Page: |
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26 | * https://sourceforge.net/projects/blitz/ |
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27 | * |
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28 | ***************************************************************************/ |
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29 | |
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30 | |
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31 | #ifndef BZ_COMPILER_H |
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32 | #define BZ_COMPILER_H |
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33 | |
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34 | // The file <blitz/bzconfig.h> is used to select a compiler-specific |
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35 | // config.h file that is generated automatically by configure. |
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36 | |
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37 | #include <blitz/bzconfig.h> |
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38 | |
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39 | /* |
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40 | * Define some kludges. |
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41 | */ |
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42 | |
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43 | #ifndef BZ_HAVE_TEMPLATES |
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44 | #error In <blitz/config.h>: A working template implementation is required by Blitz++ (you may need to rerun the compiler/bzconfig script) |
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45 | #endif |
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46 | |
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47 | #ifndef BZ_HAVE_MEMBER_TEMPLATES |
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48 | #error In <blitz/config.h>: Your compiler does not support member templates. (you may need to rerun the compiler/bzconfig script) |
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49 | #endif |
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50 | |
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51 | #ifndef BZ_HAVE_FULL_SPECIALIZATION_SYNTAX |
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52 | #error In <blitz/config.h>: Your compiler does not support template<> full specialization syntax. You may need to rerun the compiler/bzconfig script. |
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53 | #endif |
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54 | |
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55 | #ifndef BZ_HAVE_PARTIAL_ORDERING |
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56 | #error In <blitz/config.h>: Your compiler does not support partial ordering (you may need to rerun the compiler/bzconfig script) |
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57 | #endif |
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58 | |
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59 | #ifndef BZ_HAVE_PARTIAL_SPECIALIZATION |
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60 | #error In <blitz/config.h>: Your compiler does not support partial specialization (you may need to rerun the compiler/bzconfig script) |
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61 | #endif |
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62 | |
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63 | #ifdef BZ_HAVE_NAMESPACES |
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64 | #define BZ_NAMESPACE(X) namespace X { |
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65 | #define BZ_NAMESPACE_END } |
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66 | #define BZ_USING_NAMESPACE(X) using namespace X; |
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67 | #else |
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68 | #define BZ_NAMESPACE(X) |
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69 | #define BZ_NAMESPACE_END |
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70 | #define BZ_USING_NAMESPACE(X) |
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71 | #endif |
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72 | |
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73 | #ifdef BZ_HAVE_TEMPLATE_QUALIFIED_RETURN_TYPE |
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74 | #define BZ_USE_NUMTRAIT |
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75 | #endif |
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76 | |
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77 | #ifdef BZ_HAVE_DEFAULT_TEMPLATE_PARAMETERS |
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78 | #define BZ_TEMPLATE_DEFAULT(X) = X |
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79 | #else |
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80 | #define BZ_TEMPLATE_DEFAULT(X) |
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81 | #endif |
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82 | |
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83 | #ifndef BZ_HAVE_EXPLICIT |
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84 | #define explicit |
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85 | #endif |
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86 | |
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87 | #ifdef BZ_HAVE_TYPENAME |
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88 | #define _bz_typename typename |
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89 | #else |
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90 | #define _bz_typename |
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91 | #endif |
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92 | |
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93 | #ifndef BZ_HAVE_MUTABLE |
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94 | #define mutable |
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95 | #endif |
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96 | |
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97 | #ifdef BZ_DISABLE_RESTRICT |
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98 | #undef BZ_HAVE_NCEG_RESTRICT |
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99 | #endif |
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100 | |
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101 | #ifndef BZ_HAVE_NCEG_RESTRICT |
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102 | #if defined(BZ_HAVE_NCEG_RESTRICT_EGCS) |
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103 | #define restrict __restrict__ |
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104 | #else |
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105 | #define restrict |
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106 | #endif |
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107 | #endif |
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108 | |
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109 | #if !defined(BZ_HAVE_BOOL) && !defined(BZ_NO_BOOL_KLUDGE) |
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110 | #define bool int |
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111 | #define true 1 |
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112 | #define false 0 |
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113 | #endif |
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114 | |
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115 | #ifdef BZ_HAVE_ENUM_COMPUTATIONS_WITH_CAST |
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116 | #define BZ_ENUM_CAST(X) (int)X |
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117 | #elif defined(BZ_HAVE_ENUM_COMPUTATIONS) |
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118 | #define BZ_ENUM_CAST(X) X |
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119 | #else |
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120 | #error In <blitz/config.h>: Your compiler does not support enum computations. You may have to rerun compiler/bzconfig. |
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121 | #endif |
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122 | |
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123 | #if defined(BZ_MATH_FN_IN_NAMESPACE_STD) |
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124 | #define BZ_MATHFN_SCOPE(x) std::x |
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125 | #elif defined(BZ_HAVE_NAMESPACES) |
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126 | #define BZ_MATHFN_SCOPE(x) ::x |
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127 | #else |
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128 | #define BZ_MATHFN_SCOPE(x) x |
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129 | #endif |
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130 | |
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131 | #if defined(BZ_MATH_ABSINT_IN_NAMESPACE_STD) |
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132 | #include <cstdlib> |
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133 | #else |
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134 | #include <stdlib.h> |
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135 | #endif |
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136 | |
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137 | #if defined(BZ_MATH_ABSINT_IN_NAMESPACE_STD) |
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138 | #define BZ_MATHABSINT_SCOPE(x) std::x |
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139 | #elif defined(BZ_HAVE_NAMESPACES) |
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140 | #define BZ_MATHABSINT_SCOPE(x) ::x |
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141 | #else |
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142 | #define BZ_MATHABSINT_SCOPE(x) x |
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143 | #endif |
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144 | |
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145 | #if defined(BZ_HAVE_COMPLEX_MATH_IN_NAMESPACE_STD) |
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146 | #define BZ_CMATHFN_SCOPE(x) std::x |
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147 | #elif defined(BZ_HAVE_NAMESPACES) |
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148 | #define BZ_CMATHFN_SCOPE(x) ::x |
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149 | #else |
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150 | #define BZ_CMATHFN_SCOPE(x) x |
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151 | #endif |
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152 | |
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153 | #if defined(BZ_HAVE_NAMESPACES) |
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154 | #define BZ_IEEEMATHFN_SCOPE(x) ::x |
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155 | #else |
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156 | #define BZ_IEEEMATHFN_SCOPE(x) x |
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157 | #endif |
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158 | |
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159 | #if defined(BZ_HAVE_NAMESPACES) |
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160 | #define BZ_BLITZ_SCOPE(x) blitz::x |
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161 | #else |
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162 | #define BZ_BLITZ_SCOPE(x) ::x |
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163 | #endif |
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164 | |
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165 | #if defined(BZ_HAVE_NAMESPACES) && defined(BZ_HAVE_STD) |
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166 | #define BZ_STD_SCOPE(x) std::x |
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167 | #else |
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168 | #define BZ_STD_SCOPE(x) ::x |
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169 | #endif |
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170 | |
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171 | // These macros are just markers to document the code in the places |
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172 | // where playing with the processor branch prediction scheme might |
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173 | // help. For now these are just nops. |
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174 | |
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175 | #define BZ_LIKELY(x) (x) |
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176 | #define BZ_UNLIKELY(x) (x) |
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177 | |
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178 | #endif // BZ_COMPILER_H |
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179 | |
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