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Make std::filesystem::path conversion to/from UTF-8 encoded string explicit (#4631)

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* Make std::filesystem::path conversion to/from UTF-8 encoded JSON string explicit.

Signed-off-by: Richard Musil <risa2000x@gmail.com>

* Experimental: Changing C++ standard detection logic to accommodate potential corner cases.

Signed-off-by: Richard Musil <risa2000x@gmail.com>

* Drop C++ standard tests for compilers which do not implement required features.

Signed-off-by: Richard Musil <risa2000x@gmail.com>

* Drop C++ standard tests for MSVC versions which do not implement required features.

Signed-off-by: Richard Musil <risa2000x@gmail.com>

---------

Signed-off-by: Richard Musil <risa2000x@gmail.com>
Co-authored-by: Richard Musil <risa2000x@gmail.com>
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risa2000andRichard Musil authored and GitHub committed 2025-04-04 10:59:23 +02:00
1 parent 79587f896e
commit 11aa5f944d
8 files changed
+85 -15
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include/nlohmann/detail/macro_scope.hpp
+9 -4
View File
@@ -32,15 +32,20 @@
// C++ language standard detection
// if the user manually specified the used c++ version this is skipped
#if !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11)
#if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
#if !defined(JSON_HAS_CPP_23) && !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11)
#if (defined(__cplusplus) && __cplusplus > 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG > 202002L)
#define JSON_HAS_CPP_23
#define JSON_HAS_CPP_20
#define JSON_HAS_CPP_17
#define JSON_HAS_CPP_14
#elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
#elif (defined(__cplusplus) && __cplusplus > 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG > 201703L)
#define JSON_HAS_CPP_20
#define JSON_HAS_CPP_17
#define JSON_HAS_CPP_14
#elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
#elif (defined(__cplusplus) && __cplusplus > 201402L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
#define JSON_HAS_CPP_17
#define JSON_HAS_CPP_14
#elif (defined(__cplusplus) && __cplusplus > 201103L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
#define JSON_HAS_CPP_14
#endif
// the cpp 11 flag is always specified because it is the minimal required version