Convert a string to std filesystem path

问题

A file path is passed as a string. How do I convert this string to a std::filesystem::path? Example:

#include <filesystem>

std::string inputPath = "a/custom/path.ext";
const std::filesystem::path path = inputPath; // Is this assignment safe?

回答1:

Yes, this construction is safe:

const std::filesystem::path path = inputPath; // Is this assignment safe?

That is not assignment, that is copy initialization. You are invoking this constructor:

template< class Source >
path( const Source& source );

which takes:

Constructs the path from a character sequence provided by source (4), which is a pointer or an input iterator to a null-terminated character/wide character sequence, an std::basic_string or an std::basic_string_view,

So you're fine. Plus, it would be really weird if you couldn't construct a filesystem::path from a std::string.

来源：https://stackoverflow.com/questions/43114174/convert-a-string-to-std-filesystem-path