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Comparing libecb/ecb.pod (file contents):
Revision 1.81 by root, Mon Jan 20 21:01:29 2020 UTC vs.
Revision 1.84 by root, Mon Jan 20 21:10:16 2020 UTC

… …
85=over 4 85=over 4
86 86
87=item ECB_C 87=item ECB_C
88 88
89True if the implementation defines the C<__STDC__> macro to a true value, 89True if the implementation defines the C<__STDC__> macro to a true value,
90while not claiming to be C++. 90while not claiming to be C++, i..e C, but not C++.
91 91
92=item ECB_C99 92=item ECB_C99
93 93
94True if the implementation claims to be compliant to C99 (ISO/IEC 94True if the implementation claims to be compliant to C99 (ISO/IEC
959899:1999) or any later version, while not claiming to be C++. 959899:1999) or any later version, while not claiming to be C++.
… …
109 109
110=item ECB_CPP11, ECB_CPP14, ECB_CPP17 110=item ECB_CPP11, ECB_CPP14, ECB_CPP17
111 111
112True if the implementation claims to be compliant to C++11/C++14/C++17 112True if the implementation claims to be compliant to C++11/C++14/C++17
113(ISO/IEC 14882:2011, :2014, :2017) or any later version. 113(ISO/IEC 14882:2011, :2014, :2017) or any later version.
114
115Note that many C++20 features will likely have their own feature test
116macros (see e.g. L<http://eel.is/c++draft/cpp.predefined#1.8>).
114 117
115=item ECB_OPTIMIZE_SIZE 118=item ECB_OPTIMIZE_SIZE
116 119
117Is C<1> when the compiler optimizes for size, C<0> otherwise. This symbol 120Is C<1> when the compiler optimizes for size, C<0> otherwise. This symbol
118can also be defined before including F<ecb.h>, in which case it will be 121can also be defined before including F<ecb.h>, in which case it will be
119unchanged. 122unchanged.
120 123
121=item ECB_GCC_VERSION (major, minor) 124=item ECB_GCC_VERSION (major, minor)
122 125
123Expands to a true value (suitable for testing in by the preprocessor) 126Expands to a true value (suitable for testing by the preprocessor) if the
124if the compiler used is GNU C and the version is the given version, or 127compiler used is GNU C and the version is the given version, or higher.
125higher.
126 128
127This macro tries to return false on compilers that claim to be GCC 129This macro tries to return false on compilers that claim to be GCC
128compatible but aren't. 130compatible but aren't.
129 131
130=item ECB_EXTERN_C 132=item ECB_EXTERN_C
… …
149 151
150 ECB_EXTERN_C_END 152 ECB_EXTERN_C_END
151 153
152=item ECB_STDFP 154=item ECB_STDFP
153 155
154If this evaluates to a true value (suitable for testing in by the 156If this evaluates to a true value (suitable for testing by the
155preprocessor), then C<float> and C<double> use IEEE 754 single/binary32 157preprocessor), then C<float> and C<double> use IEEE 754 single/binary32
156and double/binary64 representations internally I<and> the endianness of 158and double/binary64 representations internally I<and> the endianness of
157both types match the endianness of C<uint32_t> and C<uint64_t>. 159both types match the endianness of C<uint32_t> and C<uint64_t>.
158 160
159This means you can just copy the bits of a C<float> (or C<double>) to an 161This means you can just copy the bits of a C<float> (or C<double>) to an

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