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| 67 | The macro C<ECB_PTRSIZE> is defined to the size of a pointer on this |
67 | The macro C<ECB_PTRSIZE> is defined to the size of a pointer on this |
| 68 | platform (currently C<4> or C<8>). |
68 | platform (currently C<4> or C<8>). |
| 69 | |
69 | |
| 70 | =head2 LANGUAGE/COMPILER VERSIONS |
70 | =head2 LANGUAGE/COMPILER VERSIONS |
| 71 | |
71 | |
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72 | All the following symbols expand to an expressionb that cna be tested in |
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73 | preprocessor instructions as well as treated as a boolean (use C<!!> to |
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74 | ensure it's either C<0> or C<1> if you need that). |
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75 | |
| 72 | =over 4 |
76 | =over 4 |
| 73 | |
77 | |
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78 | =item ECB_C |
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79 | |
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80 | True if the implementation defines the C<__STDC__> macro to a true value, |
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81 | which is typically true for both C and C++ compilers. |
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82 | |
| 74 | =item ECB_C99 |
83 | =item ECB_C99 |
| 75 | |
84 | |
| 76 | Expands to a true value (suitable for testing in by the preprocessor) |
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| 77 | if the environment claims to be C99 compliant. |
85 | True if the implementation claims to be C99 compliant. |
| 78 | |
86 | |
| 79 | =item ECB_C11 |
87 | =item ECB_C11 |
| 80 | |
88 | |
| 81 | Expands to a true value (suitable for testing in by the preprocessor) |
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| 82 | if the environment claims to be C11 compliant. |
89 | True if the implementation claims to be C11 compliant. |
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90 | |
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91 | =item ECB_CPP |
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92 | |
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93 | True if the implementation defines the C<__cplusplus__> macro to a true |
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94 | value, which is typically true for C++ compilers. |
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95 | |
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96 | =item ECB_CPP98 |
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97 | |
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98 | True if the implementation claims to be compliant to ISO/IEC 14882:1998 |
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99 | (the first C++ ISO standard) or any later vwersion. Typically true for all |
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100 | C++ compilers. |
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101 | |
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102 | =item ECB_CPP11 |
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103 | |
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104 | True if the implementation claims to be compliant to ISO/IEC 14882:2011 |
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105 | (C++11) or any later vwersion. |
| 83 | |
106 | |
| 84 | =item ECB_GCC_VERSION(major,minor) |
107 | =item ECB_GCC_VERSION(major,minor) |
| 85 | |
108 | |
| 86 | Expands to a true value (suitable for testing in by the preprocessor) |
109 | Expands to a true value (suitable for testing in by the preprocessor) |
| 87 | if the compiler used is GNU C and the version is the givne version, or |
110 | if the compiler used is GNU C and the version is the givne version, or |
