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fix(cmake): error in FindFilesystem (#1035)

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When building an application on Windows using Drogon as a dependency and with warnings treated as errors, the FindFilesystem.cmake generates this error (in CMakeError.log):

```
src.cxx(6): error C2220: the following warning is treated as an error
src.cxx(6): warning C4477: 'printf' : format string '%s' requires an argument of type 'char *', but variadic argument 1 has type 'const std::filesystem::path::value_type *'
src.cxx(6): note: consider using '%ls' in the format string
src.cxx(6): note: consider using '%lls' in the format string
src.cxx(6): note: consider using '%Ls' in the format string
src.cxx(6): note: consider using '%ws' in the format string
```

Documentation of std::filesystem::path: value_type: character type used by the native encoding of the filesystem: char on POSIX, wchar_t on Windows

Using generic_string() fixes this warning
This commit is contained in:
Bertrand Darbon 2021-09-28 13:55:30 +02:00 committed by GitHub
parent c5effe9c51
commit 9b09abe274
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1 changed files with 1 additions and 1 deletions
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cmake_modules/FindFilesystem.cmake
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@ -199,7 +199,7 @@ if(CXX_FILESYSTEM_HAVE_FS)
int main() {
auto cwd = @CXX_FILESYSTEM_NAMESPACE@::current_path();
printf("%s", cwd.c_str());
printf("%s", cwd.generic_string().c_str());
return EXIT_SUCCESS;
}
]] code @ONLY)