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Kevin Newton
957a081892
The C++ interface is intentionally minimal: it provides only a couple of niceties in order to largely stay out of the way. It is mostly used to provide: * RAII for opaque resources * Safe up and down casting for nodes * string_view for various resources * Iteration over resource lists Note that if consumers want to use it, they must be on C++17 at minimum. https://github.com/ruby/prism/commit/57b8dbe0e9
17 lines
540 B
C++
17 lines
540 B
C++
/**
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* @file compiler/cplusplus.hpp
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*/
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#ifndef PRISM_COMPILER_CPLUSPLUS_HPP
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#define PRISM_COMPILER_CPLUSPLUS_HPP
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/**
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* The C++ interface relies on C++17 for inline variables, std::string_view,
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* std::void_t, and std::is_invocable_r_v. MSVC reports __cplusplus as 199711L
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* unless /Zc:__cplusplus is passed, so its own _MSVC_LANG is checked as well.
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*/
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#if !defined(__cplusplus) || ((__cplusplus < 201703L) && (!defined(_MSVC_LANG) || (_MSVC_LANG < 201703L)))
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# error "the prism C++ interface requires C++17 or later"
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#endif
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#endif
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