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Merge bitcoin/bitcoin#25808: fs: work around u8path deprecated-declaration warnings with libc++

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ced00f5a2e fs: work around u8path deprecated-declaration warnings with libc++ (fanquake)

Pull request description:

  When building in c++20 mode using libc++, the following warning is emitted:
  ```bash
  ./fs.h:72:29: warning: 'u8path<std::string>' is deprecated [-Wdeprecated-declarations]
      return std::filesystem::u8path(utf8_str);
                              ^
  /usr/lib/llvm-14/bin/../include/c++/v1/__filesystem/u8path.h:72:27: note: 'u8path<std::string>' has been explicitly marked deprecated here
  _LIBCPP_INLINE_VISIBILITY _LIBCPP_DEPRECATED_WITH_CHAR8_T
                            ^
  /usr/lib/llvm-14/bin/../include/c++/v1/__config:1042:43: note: expanded from macro '_LIBCPP_DEPRECATED_WITH_CHAR8_T'
                                            ^
  /usr/lib/llvm-14/bin/../include/c++/v1/__config:1007:48: note: expanded from macro '_LIBCPP_DEPRECATED'
                                                 ^
  1 warning generated.
  ```

  as [`u8path<std::string>`](https://en.cppreference.com/w/cpp/filesystem/path/u8path) is deprecated starting with C++20.

  Fixes: #24682.

ACKs for top commit:
  MarcoFalke:
    review ACK ced00f5a2e
  hebasto:
    ACK ced00f5a2e

Tree-SHA512: f012c4f0bec691090eb3ff128ee0cdc392f73e7857b97131da924ab18c088a82d2fba95316d405feb8b744cba63bfeff7b08143086c173fddbf972139ea0ac0b
This commit is contained in:
MacroFake 2022-08-19 13:50:20 +02:00
commit d480586ecb
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2 changed files with 5 additions and 1 deletions
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2
build_msvc/common.init.vcxproj.in
View File

@ -90,7 +90,7 @@
<AdditionalOptions>/utf-8 /Zc:__cplusplus /std:c++20 %(AdditionalOptions)</AdditionalOptions>
<DisableSpecificWarnings>4018;4244;4267;4334;4715;4805;4834</DisableSpecificWarnings>
<TreatWarningAsError>true</TreatWarningAsError>
<PreprocessorDefinitions>_SILENCE_CXX20_U8PATH_DEPRECATION_WARNING;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;ZMQ_STATIC;NOMINMAX;WIN32;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_CONSOLE;_WIN32_WINNT=0x0601;_WIN32_IE=0x0501;WIN32_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions>_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;ZMQ_STATIC;NOMINMAX;WIN32;HAVE_CONFIG_H;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_CONSOLE;_WIN32_WINNT=0x0601;_WIN32_IE=0x0501;WIN32_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\..\src;..\..\src\minisketch\include;..\..\src\univalue\include;..\..\src\secp256k1\include;..\..\src\leveldb\include;..\..\src\leveldb\helpers\memenv;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>

4
src/fs.h
View File

@ -69,7 +69,11 @@ public:
static inline path u8path(const std::string& utf8_str)
{
#if __cplusplus < 202002L
return std::filesystem::u8path(utf8_str);
#else
return std::filesystem::path(std::u8string{utf8_str.begin(), utf8_str.end()});
#endif
}
// Disallow implicit std::string conversion for absolute to avoid