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fix(#279): fix compilation with older msvc

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by avoiding known SFINAE problem in msvc 2017
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ToruNiina
2025-01-13 00:47:58 +09:00
parent c9a00dea5c
commit 844e8fd4e0
5 changed files with 136 additions and 66 deletions
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29
include/toml11/compat.hpp
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@@ -386,6 +386,35 @@ using return_type_of_t = typename std::result_of<F(Args...)>::type;
} // cxx
} // toml
// ---------------------------------------------------------------------------
// C++17 void_t
#if TOML11_CPLUSPLUS_STANDARD_VERSION >= TOML11_CXX17_VALUE
# if defined(__cpp_lib_void_t)
# if __cpp_lib_void_t >= 201411L
# define TOML11_HAS_STD_VOID_T 1
# endif
# endif
#endif
namespace toml
{
namespace cxx
{
#if defined(TOML11_HAS_STD_VOID_T)
using std::void_t;
#else
template<typename ...>
using void_t = void;
#endif // TOML11_HAS_STD_VOID_T
} // cxx
} // toml
// ----------------------------------------------------------------------------
// (subset of) source_location