520 lines
16 KiB
C++
520 lines
16 KiB
C++
//# This file is a part of toml++ and is subject to the the terms of the MIT license.
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//# Copyright (c) 2019-2020 Mark Gillard <mark.gillard@outlook.com.au>
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//# See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
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// SPDX-License-Identifier: MIT
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#pragma once
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// clang-format off
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////////// CONFIGURATION
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#ifdef TOML_CONFIG_HEADER
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#include TOML_CONFIG_HEADER
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#endif
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#if !defined(TOML_ALL_INLINE) || (defined(TOML_ALL_INLINE) && TOML_ALL_INLINE) || defined(__INTELLISENSE__)
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#undef TOML_ALL_INLINE
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#define TOML_ALL_INLINE 1
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#endif
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#if defined(TOML_IMPLEMENTATION) || TOML_ALL_INLINE
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#undef TOML_IMPLEMENTATION
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#define TOML_IMPLEMENTATION 1
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#else
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#define TOML_IMPLEMENTATION 0
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#endif
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#ifndef TOML_API
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#define TOML_API
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#endif
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#ifndef TOML_CHAR_8_STRINGS
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#define TOML_CHAR_8_STRINGS 0
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#endif
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#ifndef TOML_UNRELEASED_FEATURES
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#define TOML_UNRELEASED_FEATURES 0
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#endif
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#ifndef TOML_LARGE_FILES
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#define TOML_LARGE_FILES 0
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#endif
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#ifndef TOML_UNDEF_MACROS
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#define TOML_UNDEF_MACROS 1
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#endif
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#ifndef TOML_PARSER
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#define TOML_PARSER 1
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#endif
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////////// COMPILER & ENVIRONMENT
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#ifndef __cplusplus
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#error toml++ is a C++ library.
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#endif
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#ifndef TOML_DOXYGEN
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#define TOML_DOXYGEN 0
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#endif
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#ifdef __clang__
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#define TOML_PUSH_WARNINGS _Pragma("clang diagnostic push")
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#define TOML_DISABLE_SWITCH_WARNINGS _Pragma("clang diagnostic ignored \"-Wswitch\"")
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#define TOML_DISABLE_INIT_WARNINGS _Pragma("clang diagnostic ignored \"-Wmissing-field-initializers\"")
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#define TOML_DISABLE_VTABLE_WARNINGS _Pragma("clang diagnostic ignored \"-Weverything\"") \
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_Pragma("clang diagnostic ignored \"-Wweak-vtables\"")
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#define TOML_DISABLE_PADDING_WARNINGS _Pragma("clang diagnostic ignored \"-Wpadded\"")
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#define TOML_DISABLE_FLOAT_WARNINGS _Pragma("clang diagnostic ignored \"-Wfloat-equal\"") \
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_Pragma("clang diagnostic ignored \"-Wdouble-promotion\"")
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#define TOML_DISABLE_SHADOW_WARNINGS _Pragma("clang diagnostic ignored \"-Wshadow\"")
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#define TOML_DISABLE_ALL_WARNINGS _Pragma("clang diagnostic ignored \"-Weverything\"")
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#define TOML_POP_WARNINGS _Pragma("clang diagnostic pop")
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#define TOML_ASSUME(cond) __builtin_assume(cond)
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#define TOML_UNREACHABLE __builtin_unreachable()
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#define TOML_ATTR(...) __attribute__((__VA_ARGS__))
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#if defined(_MSC_VER) // msvc compat mode
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#ifdef __has_declspec_attribute
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#if __has_declspec_attribute(novtable)
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#define TOML_INTERFACE __declspec(novtable)
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#endif
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#if __has_declspec_attribute(empty_bases)
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#define TOML_EMPTY_BASES __declspec(empty_bases)
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#endif
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#ifndef TOML_ALWAYS_INLINE
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#define TOML_ALWAYS_INLINE __forceinline
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#endif
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#if __has_declspec_attribute(noinline)
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#define TOML_NEVER_INLINE __declspec(noinline)
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#endif
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#endif
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#endif
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#ifdef __has_attribute
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#if !defined(TOML_ALWAYS_INLINE) && __has_attribute(always_inline)
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#define TOML_ALWAYS_INLINE __attribute__((__always_inline__)) inline
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#endif
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#if !defined(TOML_NEVER_INLINE) && __has_attribute(noinline)
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#define TOML_NEVER_INLINE __attribute__((__noinline__))
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#endif
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#if !defined(TOML_TRIVIAL_ABI) && __has_attribute(trivial_abi)
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#define TOML_TRIVIAL_ABI __attribute__((__trivial_abi__))
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#endif
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#endif
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#ifdef __EXCEPTIONS
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#define TOML_COMPILER_EXCEPTIONS 1
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#else
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#define TOML_COMPILER_EXCEPTIONS 0
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#endif
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#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
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#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
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//floating-point from_chars and to_chars are not implemented in any version of clang as of 1/1/2020
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#ifndef TOML_FLOAT_CHARCONV
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#define TOML_FLOAT_CHARCONV 0
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#endif
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#elif defined(_MSC_VER) || (defined(__INTEL_COMPILER) && defined(__ICL))
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#define TOML_PUSH_WARNINGS __pragma(warning(push))
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#define TOML_DISABLE_SWITCH_WARNINGS __pragma(warning(disable: 4063))
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#define TOML_DISABLE_ALL_WARNINGS __pragma(warning(pop)) \
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__pragma(warning(push, 0))
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#define TOML_POP_WARNINGS __pragma(warning(pop))
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#define TOML_CPP_VERSION _MSVC_LANG
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#ifndef TOML_ALWAYS_INLINE
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#define TOML_ALWAYS_INLINE __forceinline
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#endif
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#define TOML_NEVER_INLINE __declspec(noinline)
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#define TOML_ASSUME(cond) __assume(cond)
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#define TOML_UNREACHABLE __assume(0)
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#define TOML_INTERFACE __declspec(novtable)
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#define TOML_EMPTY_BASES __declspec(empty_bases)
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#if !defined(TOML_RELOPS_REORDERING) && defined(__cpp_impl_three_way_comparison)
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#define TOML_RELOPS_REORDERING 1
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#endif
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#ifdef _CPPUNWIND
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#define TOML_COMPILER_EXCEPTIONS 1
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#else
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#define TOML_COMPILER_EXCEPTIONS 0
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#endif
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#elif defined(__GNUC__)
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#define TOML_PUSH_WARNINGS _Pragma("GCC diagnostic push")
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#define TOML_DISABLE_SWITCH_WARNINGS _Pragma("GCC diagnostic ignored \"-Wswitch\"") \
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_Pragma("GCC diagnostic ignored \"-Wswitch-enum\"") \
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_Pragma("GCC diagnostic ignored \"-Wswitch-default\"")
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#define TOML_DISABLE_INIT_WARNINGS _Pragma("GCC diagnostic ignored \"-Wmissing-field-initializers\"") \
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_Pragma("GCC diagnostic ignored \"-Wmaybe-uninitialized\"") \
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_Pragma("GCC diagnostic ignored \"-Wuninitialized\"")
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#define TOML_DISABLE_PADDING_WARNINGS _Pragma("GCC diagnostic ignored \"-Wpadded\"")
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#define TOML_DISABLE_FLOAT_WARNINGS _Pragma("GCC diagnostic ignored \"-Wfloat-equal\"")
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#define TOML_DISABLE_SHADOW_WARNINGS _Pragma("GCC diagnostic ignored \"-Wshadow\"")
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#define TOML_DISABLE_SUGGEST_WARNINGS _Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") \
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_Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=pure\"")
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#define TOML_DISABLE_ALL_WARNINGS _Pragma("GCC diagnostic ignored \"-Wall\"") \
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_Pragma("GCC diagnostic ignored \"-Wextra\"") \
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_Pragma("GCC diagnostic ignored \"-Wchar-subscripts\"") \
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_Pragma("GCC diagnostic ignored \"-Wtype-limits\"") \
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TOML_DISABLE_SUGGEST_WARNINGS \
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TOML_DISABLE_SWITCH_WARNINGS \
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TOML_DISABLE_INIT_WARNINGS \
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TOML_DISABLE_PADDING_WARNINGS \
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TOML_DISABLE_FLOAT_WARNINGS \
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TOML_DISABLE_SHADOW_WARNINGS
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#define TOML_POP_WARNINGS _Pragma("GCC diagnostic pop")
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#define TOML_ATTR(...) __attribute__((__VA_ARGS__))
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#ifndef TOML_ALWAYS_INLINE
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#define TOML_ALWAYS_INLINE __attribute__((__always_inline__)) inline
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#endif
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#define TOML_NEVER_INLINE __attribute__((__noinline__))
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#define TOML_UNREACHABLE __builtin_unreachable()
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#if !defined(TOML_RELOPS_REORDERING) && defined(__cpp_impl_three_way_comparison)
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#define TOML_RELOPS_REORDERING 1
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#endif
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#ifdef __cpp_exceptions
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#define TOML_COMPILER_EXCEPTIONS 1
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#else
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#define TOML_COMPILER_EXCEPTIONS 0
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#endif
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#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
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#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
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// floating-point from_chars and to_chars are not implemented in any version of gcc as of 1/1/2020
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#ifndef TOML_FLOAT_CHARCONV
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#define TOML_FLOAT_CHARCONV 0
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#endif
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#endif
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#ifndef TOML_CPP_VERSION
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#define TOML_CPP_VERSION __cplusplus
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#endif
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#if TOML_CPP_VERSION < 201103L
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#error toml++ requires C++17 or higher. For a TOML library supporting pre-C++11 see https://github.com/ToruNiina/Boost.toml
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#elif TOML_CPP_VERSION < 201703L
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#error toml++ requires C++17 or higher. For a TOML library supporting C++11 see https://github.com/ToruNiina/toml11
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#elif TOML_CPP_VERSION >= 202600L
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#define TOML_CPP 26
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#elif TOML_CPP_VERSION >= 202300L
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#define TOML_CPP 23
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#elif TOML_CPP_VERSION >= 202002L
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#define TOML_CPP 20
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#elif TOML_CPP_VERSION >= 201703L
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#define TOML_CPP 17
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#endif
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#ifndef TOML_COMPILER_EXCEPTIONS
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#define TOML_COMPILER_EXCEPTIONS 1
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#endif
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#if TOML_COMPILER_EXCEPTIONS
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#ifndef TOML_EXCEPTIONS
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#define TOML_EXCEPTIONS 1
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#endif
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#else
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#if defined(TOML_EXCEPTIONS) && TOML_EXCEPTIONS
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#error TOML_EXCEPTIONS was explicitly enabled but exceptions are disabled/unsupported by the compiler.
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#endif
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#undef TOML_EXCEPTIONS
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#define TOML_EXCEPTIONS 0
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#endif
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#if TOML_EXCEPTIONS
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#define TOML_MAY_THROW
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#else
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#define TOML_MAY_THROW noexcept
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#endif
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#ifndef TOML_INT_CHARCONV
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#define TOML_INT_CHARCONV 1
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#endif
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#ifndef TOML_FLOAT_CHARCONV
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#define TOML_FLOAT_CHARCONV 1
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#endif
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#if (TOML_INT_CHARCONV || TOML_FLOAT_CHARCONV) && !__has_include(<charconv>)
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#undef TOML_INT_CHARCONV
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#undef TOML_FLOAT_CHARCONV
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#define TOML_INT_CHARCONV 0
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#define TOML_FLOAT_CHARCONV 0
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#endif
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#ifndef TOML_PUSH_WARNINGS
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#define TOML_PUSH_WARNINGS
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#endif
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#ifndef TOML_DISABLE_SWITCH_WARNINGS
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#define TOML_DISABLE_SWITCH_WARNINGS
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#endif
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#ifndef TOML_DISABLE_INIT_WARNINGS
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#define TOML_DISABLE_INIT_WARNINGS
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#endif
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#ifndef TOML_DISABLE_VTABLE_WARNINGS
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#define TOML_DISABLE_VTABLE_WARNINGS
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#endif
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#ifndef TOML_DISABLE_PADDING_WARNINGS
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#define TOML_DISABLE_PADDING_WARNINGS
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#endif
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#ifndef TOML_DISABLE_FLOAT_WARNINGS
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#define TOML_DISABLE_FLOAT_WARNINGS
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#endif
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#ifndef TOML_DISABLE_SHADOW_WARNINGS
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#define TOML_DISABLE_SHADOW_WARNINGS
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#endif
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#ifndef TOML_DISABLE_SUGGEST_WARNINGS
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#define TOML_DISABLE_SUGGEST_WARNINGS
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#endif
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#ifndef TOML_DISABLE_ALL_WARNINGS
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#define TOML_DISABLE_ALL_WARNINGS
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#endif
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#ifndef TOML_POP_WARNINGS
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#define TOML_POP_WARNINGS
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#endif
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#ifndef TOML_ATTR
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#define TOML_ATTR(...)
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#endif
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#ifndef TOML_INTERFACE
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#define TOML_INTERFACE
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#endif
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#ifndef TOML_EMPTY_BASES
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#define TOML_EMPTY_BASES
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#endif
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#ifndef TOML_ALWAYS_INLINE
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#define TOML_ALWAYS_INLINE inline
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#endif
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#ifndef TOML_NEVER_INLINE
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#define TOML_NEVER_INLINE
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#endif
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#ifndef TOML_ASSUME
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#define TOML_ASSUME(cond) (void)0
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#endif
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#ifndef TOML_UNREACHABLE
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#define TOML_UNREACHABLE TOML_ASSERT(false)
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#endif
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#define TOML_NO_DEFAULT_CASE default: TOML_UNREACHABLE
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#ifdef __cpp_consteval
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#define TOML_CONSTEVAL consteval
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#else
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#define TOML_CONSTEVAL constexpr
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#endif
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#if !TOML_DOXYGEN && !defined(__INTELLISENSE__)
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#if !defined(TOML_LIKELY) && __has_cpp_attribute(likely)
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#define TOML_LIKELY(...) (__VA_ARGS__) [[likely]]
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#endif
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#if !defined(TOML_UNLIKELY) && __has_cpp_attribute(unlikely)
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#define TOML_UNLIKELY(...) (__VA_ARGS__) [[unlikely]]
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#endif
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#if __has_cpp_attribute(nodiscard) >= 201907L
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#define TOML_NODISCARD_CTOR [[nodiscard]]
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#endif
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#endif
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#ifndef TOML_LIKELY
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#define TOML_LIKELY(...) (__VA_ARGS__)
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#endif
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#ifndef TOML_UNLIKELY
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#define TOML_UNLIKELY(...) (__VA_ARGS__)
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#endif
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#ifndef TOML_NODISCARD_CTOR
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#define TOML_NODISCARD_CTOR
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#endif
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#ifndef TOML_TRIVIAL_ABI
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#define TOML_TRIVIAL_ABI
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#endif
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#ifndef TOML_RELOPS_REORDERING
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#define TOML_RELOPS_REORDERING 0
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#endif
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#if TOML_RELOPS_REORDERING
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#define TOML_ASYMMETRICAL_EQUALITY_OPS(...)
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#else
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#define TOML_ASYMMETRICAL_EQUALITY_OPS(LHS, RHS, ...) \
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__VA_ARGS__ [[nodiscard]] friend bool operator == (RHS rhs, LHS lhs) noexcept { return lhs == rhs; } \
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__VA_ARGS__ [[nodiscard]] friend bool operator != (LHS lhs, RHS rhs) noexcept { return !(lhs == rhs); } \
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__VA_ARGS__ [[nodiscard]] friend bool operator != (RHS rhs, LHS lhs) noexcept { return !(lhs == rhs); }
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#endif
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#if TOML_ALL_INLINE
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#define TOML_EXTERNAL_LINKAGE inline
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#define TOML_INTERNAL_LINKAGE inline
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#define TOML_INTERNAL_NAMESPACE toml::impl
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#else
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#define TOML_EXTERNAL_LINKAGE
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#define TOML_INTERNAL_LINKAGE static
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#define TOML_INTERNAL_NAMESPACE
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#endif
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#include "toml_version.h"
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//# {{
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#define TOML_LIB_SINGLE_HEADER 0
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//# }}
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#define TOML_MAKE_VERSION(maj, min, rev) \
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((maj) * 1000 + (min) * 25 + (rev))
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#if TOML_UNRELEASED_FEATURES
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#define TOML_LANG_EFFECTIVE_VERSION \
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TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH+1)
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#else
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#define TOML_LANG_EFFECTIVE_VERSION \
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TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH)
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#endif
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#define TOML_LANG_HIGHER_THAN(maj, min, rev) \
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(TOML_LANG_EFFECTIVE_VERSION > TOML_MAKE_VERSION(maj, min, rev))
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#define TOML_LANG_AT_LEAST(maj, min, rev) \
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(TOML_LANG_EFFECTIVE_VERSION >= TOML_MAKE_VERSION(maj, min, rev))
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#define TOML_LANG_UNRELEASED \
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TOML_LANG_HIGHER_THAN(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH)
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#if TOML_DOXYGEN || defined(__INTELLISENSE__)
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#define TOML_ABI_NAMESPACES 0
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#define TOML_ABI_NAMESPACE_START(name)
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#define TOML_ABI_NAMESPACE_END
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#else
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#define TOML_ABI_NAMESPACES 1
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#define TOML_ABI_NAMESPACE_START(name) inline namespace abi_##name {
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#define TOML_ABI_NAMESPACE_END }
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#endif
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TOML_PUSH_WARNINGS
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TOML_DISABLE_ALL_WARNINGS
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#ifndef TOML_ASSERT
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#if defined(NDEBUG) || !defined(_DEBUG)
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#define TOML_ASSERT(expr) (void)0
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#else
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#include <cassert>
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#define TOML_ASSERT(expr) assert(expr)
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#endif
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#endif
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TOML_POP_WARNINGS
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#if TOML_CHAR_8_STRINGS
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#define TOML_STRING_PREFIX_1(S) u8##S
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#define TOML_STRING_PREFIX(S) TOML_STRING_PREFIX_1(S)
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#else
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#define TOML_STRING_PREFIX(S) S
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#endif
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//# {{
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#if TOML_DOXYGEN
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/// \addtogroup configuration Library Configuration
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/// \brief Preprocessor macros for configuring library functionality.
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/// \detail Define these before including toml++ to alter the way it functions.
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/// \remarks Some of these options have ABI implications; inline namespaces are used to prevent
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/// you from trying to link incompatible combinations together.
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/// @{
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/// \def TOML_ALL_INLINE
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/// \brief Sets whether the library is entirely inline.
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/// \detail Defaults to `1`.
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/// \remark Disabling this means that you must define `TOML_IMPLEMENTATION` in
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/// <strong><em>exactly one</em></strong> translation unit in your project:
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/// \cpp
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/// // global_header_that_includes_toml++.h
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/// #define TOML_ALL_INLINE 0
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/// #include <toml.hpp>
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///
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/// // some_code_file.cpp
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/// #define TOML_IMPLEMENTATION
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/// #include "global_header_that_includes_toml++.h"
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/// \ecpp
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#define TOML_API
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/// \def TOML_API
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/// \brief An annotation to add to public symbols.
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/// \detail Not defined by default.
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/// \remark You'd override this with `__declspec(dllexport)` if you were building the library
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/// into the public API of a DLL on Windows.
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/// \def TOML_ASSERT(expr)
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/// \brief Sets the assert function used by the library.
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/// \detail Defaults to the standard C `assert()`.
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/// \def TOML_CHAR_8_STRINGS
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/// \brief Uses C++20 char8_t-based strings as the toml string data type.
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/// \detail Defaults to `0`.
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#define TOML_CONFIG_HEADER
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/// \def TOML_CONFIG_HEADER
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/// \brief An additional header to include before any other toml++ header files.
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/// \detail Not defined by default.
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/// \def TOML_EXCEPTIONS
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/// \brief Sets whether the library uses exceptions to report parsing failures.
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/// \detail Defaults to `1` or `0` according to your compiler's exception mode.
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/// \def TOML_IMPLEMENTATION
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/// \brief Enables the library's implementation when #TOML_ALL_INLINE is enabled.
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/// \detail Not defined by default. Meaningless when #TOML_ALL_INLINE is disabled.
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/// \def TOML_LARGE_FILES
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/// \brief Sets whether line and column indices are 32-bit integers.
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/// \detail Defaults to `0`.
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/// \see toml::source_index
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#define TOML_OPTIONAL_TYPE
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/// \def TOML_OPTIONAL_TYPE
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/// \brief Overrides the `optional<T>` type used by the library.
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/// \detail Not defined by default (use std::optional).
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/// \warning The library uses optionals internally in a few places; if you choose to replace the optional type
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/// it must be with something that is still API-compatible with std::optional
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/// (e.g. [tl::optional](https://github.com/TartanLlama/optional)).
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/// \def TOML_PARSER
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/// \brief Sets whether the parser-related parts of the library are included.
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/// \detail Defaults to `1`.
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/// \remarks If you don't need to parse TOML data from any strings or files (e.g. you're only using the library to
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/// serialize data as TOML), setting `TOML_PARSER` to `0` can yield decent compilation speed improvements.
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#define TOML_SMALL_FLOAT_TYPE
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/// \def TOML_SMALL_FLOAT_TYPE
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/// \brief If your codebase has an additional 'small' float type (e.g. half-precision), this tells toml++ about it.
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/// \detail Not defined by default.
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#define TOML_SMALL_INT_TYPE
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/// \def TOML_SMALL_INT_TYPE
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/// \brief If your codebase has an additional 'small' integer type (e.g. 24-bits), this tells toml++ about it.
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/// \detail Not defined by default.
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/// \def TOML_UNRELEASED_FEATURES
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/// \brief Enables support for unreleased TOML language features not yet part of a
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/// [numbered version](https://github.com/toml-lang/toml/releases).
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/// \detail Defaults to `0`.
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/// \see [TOML Language Support](https://github.com/marzer/tomlplusplus/blob/master/README.md#toml-language-support)
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/// @}
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#endif // TOML_DOXYGEN
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//# }}
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// clang-format on
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