mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Daniel Lemire
123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
#ifndef SIMDJSON_COMPILER_CHECK_H
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#define SIMDJSON_COMPILER_CHECK_H
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#ifndef __cplusplus
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#error simdjson requires a C++ compiler
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#endif
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#ifndef SIMDJSON_CPLUSPLUS
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#if defined(_MSVC_LANG) && !defined(__clang__)
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#define SIMDJSON_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG)
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#else
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#define SIMDJSON_CPLUSPLUS __cplusplus
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#endif
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#endif
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// C++ 26
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#if !defined(SIMDJSON_CPLUSPLUS26) && (SIMDJSON_CPLUSPLUS >= 202402L) // update when the standard is finalized
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#define SIMDJSON_CPLUSPLUS26 1
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#endif
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// C++ 23
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#if !defined(SIMDJSON_CPLUSPLUS23) && (SIMDJSON_CPLUSPLUS >= 202302L)
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#define SIMDJSON_CPLUSPLUS23 1
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#endif
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// C++ 20
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#if !defined(SIMDJSON_CPLUSPLUS20) && (SIMDJSON_CPLUSPLUS >= 202002L)
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#define SIMDJSON_CPLUSPLUS20 1
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#endif
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// C++ 17
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#if !defined(SIMDJSON_CPLUSPLUS17) && (SIMDJSON_CPLUSPLUS >= 201703L)
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#define SIMDJSON_CPLUSPLUS17 1
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#endif
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// C++ 14
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#if !defined(SIMDJSON_CPLUSPLUS14) && (SIMDJSON_CPLUSPLUS >= 201402L)
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#define SIMDJSON_CPLUSPLUS14 1
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#endif
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// C++ 11
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#if !defined(SIMDJSON_CPLUSPLUS11) && (SIMDJSON_CPLUSPLUS >= 201103L)
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#define SIMDJSON_CPLUSPLUS11 1
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#endif
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#ifndef SIMDJSON_CPLUSPLUS11
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#error simdjson requires a compiler compliant with the C++11 standard
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#endif
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#ifndef SIMDJSON_IF_CONSTEXPR
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#if SIMDJSON_CPLUSPLUS17
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#define SIMDJSON_IF_CONSTEXPR if constexpr
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#else
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#define SIMDJSON_IF_CONSTEXPR if
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#endif
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#endif
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#ifndef SIMDJSON_CONSTEXPR_LAMBDA
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#if SIMDJSON_CPLUSPLUS17
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#define SIMDJSON_CONSTEXPR_LAMBDA constexpr
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#else
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#define SIMDJSON_CONSTEXPR_LAMBDA
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#endif
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#endif
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#ifdef __has_include
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#if __has_include(<version>)
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#include <version>
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#endif
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#endif
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// The current specification is unclear on how we detect
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// static reflection, both __cpp_lib_reflection and
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// __cpp_impl_reflection are proposed in the draft specification.
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// For now, we disable static reflect by default. It must be
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// specified at compiler time.
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#ifndef SIMDJSON_STATIC_REFLECTION
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#define SIMDJSON_STATIC_REFLECTION 0 // disabled by default.
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#endif
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#if defined(__apple_build_version__)
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#if __apple_build_version__ < 14000000
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#define SIMDJSON_CONCEPT_DISABLED 1 // apple-clang/13 doesn't support std::convertible_to
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#endif
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#endif
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#if defined(__cpp_lib_ranges) && __cpp_lib_ranges >= 201911L
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#include <ranges>
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#define SIMDJSON_SUPPORTS_RANGES 1
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#else
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#define SIMDJSON_SUPPORTS_RANGES 0
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#endif
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#if defined(__cpp_concepts) && !defined(SIMDJSON_CONCEPT_DISABLED)
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#if __cpp_concepts >= 201907L
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#include <utility>
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#define SIMDJSON_SUPPORTS_CONCEPTS 1
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#else
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#define SIMDJSON_SUPPORTS_CONCEPTS 0
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#endif
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#else // defined(__cpp_concepts) && !defined(SIMDJSON_CONCEPT_DISABLED)
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#define SIMDJSON_SUPPORTS_CONCEPTS 0
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#endif // defined(__cpp_concepts) && !defined(SIMDJSON_CONCEPT_DISABLED)
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// copy SIMDJSON_SUPPORTS_CONCEPTS to SIMDJSON_SUPPORTS_DESERIALIZATION.
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#if SIMDJSON_SUPPORTS_CONCEPTS
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#define SIMDJSON_SUPPORTS_DESERIALIZATION 1
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#else
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#define SIMDJSON_SUPPORTS_DESERIALIZATION 0
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#endif
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#if !defined(SIMDJSON_CONSTEVAL)
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#if defined(__cpp_consteval) && __cpp_consteval >= 201811L && defined(__cpp_lib_constexpr_string) && __cpp_lib_constexpr_string >= 201907L
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#define SIMDJSON_CONSTEVAL 1
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#else
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#define SIMDJSON_CONSTEVAL 0
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#endif // defined(__cpp_consteval) && __cpp_consteval >= 201811L && defined(__cpp_lib_constexpr_string) && __cpp_lib_constexpr_string >= 201907L
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#endif // !defined(SIMDJSON_CONSTEVAL)
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#endif // SIMDJSON_COMPILER_CHECK_H
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