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C++20 compiler support

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This commit is contained in:
halx99 2022-10-05 10:49:18 +08:00
parent 1c6a55f422
commit 4bec1e8a9c
1 changed files with 24 additions and 9 deletions
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33
src/pugixml.hpp
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@ -38,15 +38,30 @@
# include <string> # include <string>
#endif #endif
#if (defined(__cplusplus) && __cplusplus == 201703L) || (defined(_MSC_VER) && _MSC_VER > 1900 && ((defined(_HAS_CXX17) && _HAS_CXX17 == 1) || (defined(_MSVC_LANG) && (_MSVC_LANG > 201402L)))) // Tests whether compiler has c++17 support
#ifndef PUGI_CXX17_FEATURES #if (defined(__cplusplus) && __cplusplus >= 201703L) || \
#define PUGI_CXX17_FEATURES 1 (defined(_MSC_VER) && _MSC_VER > 1900 && \
#endif // C++17 features macro ((defined(_HAS_CXX17) && _HAS_CXX17 == 1) || \
#endif // C++17 features check (defined(_MSVC_LANG) && (_MSVC_LANG > 201402L))))
# ifndef PUGI_CXX_STD
# define PUGI_CXX_STD 17
# endif // C++17 features macro
#endif // C++17 features check
#if defined(PUGI_CXX17_FEATURES) && PUGI_CXX17_FEATURES // Tests whether compiler has c++20 support
#include <string_view> #if (defined(__cplusplus) && __cplusplus > 201703L) || \
#endif // C++17 features (defined(_MSC_VER) && _MSC_VER > 1900 && \
((defined(_HAS_CXX20) && _HAS_CXX20 == 1) || \
(defined(_MSVC_LANG) && (_MSVC_LANG > 201703L))))
# ifdef PUGI_CXX_STD
# undef PUGI_CXX_STD
# define PUGI_CXX_STD 20
# endif // C++20 features macro
#endif // C++20 features check
#if !defined(PUGI_CXX_STD)
# define PUGI_CXX_STD 11
#endif
// Macro for deprecated features // Macro for deprecated features
#ifndef PUGIXML_DEPRECATED #ifndef PUGIXML_DEPRECATED
@ -142,7 +157,7 @@
// The string_view // The string_view
namespace pugi { namespace pugi {
#if defined(PUGI_CXX17_FEATURES) && PUGI_CXX17_FEATURES #if PUGI_CXX_STD >= 17
template <typename C, typename T = std::char_traits<C> > template <typename C, typename T = std::char_traits<C> >
using basic_string_view = std::basic_string_view<C, T>; using basic_string_view = std::basic_string_view<C, T>;
typedef std::string_view string_view; typedef std::string_view string_view;