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annotate dep/toml11/toml/version.hpp @ 318:3b355fa948c7

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config: use TOML instead of INI unfortunately, INI is not enough, and causes some paths including semicolons to break with our current storage of the library folders. so, I decided to switch to TOML which does support real arrays...
author Paper <paper@paper.us.eu.org>
date Wed, 12 Jun 2024 05:25:41 -0400
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3b355fa948c7 config: use TOML instead of INI
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1 #ifndef TOML11_VERSION_HPP
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2 #define TOML11_VERSION_HPP
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3
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4 // This file checks C++ version.
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5
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6 #ifndef __cplusplus
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7 # error "__cplusplus is not defined"
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8 #endif
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9
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10 // Since MSVC does not define `__cplusplus` correctly unless you pass
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11 // `/Zc:__cplusplus` when compiling, the workaround macros are added.
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12 // Those enables you to define version manually or to use MSVC specific
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13 // version macro automatically.
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14 //
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15 // The value of `__cplusplus` macro is defined in the C++ standard spec, but
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16 // MSVC ignores the value, maybe because of backward compatibility. Instead,
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17 // MSVC defines _MSVC_LANG that has the same value as __cplusplus defined in
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18 // the C++ standard. First we check the manual version definition, and then
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19 // we check if _MSVC_LANG is defined. If neither, use normal `__cplusplus`.
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20 //
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21 // FYI: https://docs.microsoft.com/en-us/cpp/build/reference/zc-cplusplus?view=msvc-170
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22 // https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=msvc-170
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23 //
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24 #if defined(TOML11_ENFORCE_CXX11)
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25 # define TOML11_CPLUSPLUS_STANDARD_VERSION 201103L
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26 #elif defined(TOML11_ENFORCE_CXX14)
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27 # define TOML11_CPLUSPLUS_STANDARD_VERSION 201402L
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28 #elif defined(TOML11_ENFORCE_CXX17)
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29 # define TOML11_CPLUSPLUS_STANDARD_VERSION 201703L
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30 #elif defined(TOML11_ENFORCE_CXX20)
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31 # define TOML11_CPLUSPLUS_STANDARD_VERSION 202002L
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32 #elif defined(_MSVC_LANG) && defined(_MSC_VER) && 1910 <= _MSC_VER
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33 # define TOML11_CPLUSPLUS_STANDARD_VERSION _MSVC_LANG
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34 #else
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35 # define TOML11_CPLUSPLUS_STANDARD_VERSION __cplusplus
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36 #endif
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37
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38 #if TOML11_CPLUSPLUS_STANDARD_VERSION < 201103L && _MSC_VER < 1900
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39 # error "toml11 requires C++11 or later."
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40 #endif
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41
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42 #endif// TOML11_VERSION_HPP