std::filesystem::directory_entry::is_regular_file - cppreference.com (original) (raw)

bool is_regular_file() const;	(1)	(since C++17)
	(2)	(since C++17)

Checks whether the pointed-to object is a regular file. Effectively returns:

[edit] Parameters

ec	-	out-parameter for error reporting in the non-throwing overload

[edit] Return value

true if the referred-to filesystem object is a regular file, false otherwise.

[edit] Exceptions

Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.

Throws std::filesystem::filesystem_error on underlying OS API errors, constructed with p as the first path argument and the OS error code as the error code argument.
Sets a std::error_code& parameter to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur.

[edit] Example

#include #include #include namespace fs = std::filesystem; int main(int argc, const char* argv[]) { // Print out all regular files in a directory 'dir'. try { const auto dir{argc == 2 ? fs::path{argv[1]} : fs::current_path()}; std::cout << "Current dir: " << dir << '\n' << std::string(40, '-') << '\n'; for (fs::directory_entry const& entry : fs::directory_iterator(dir)) if (entry.is_regular_file()) std::cout << entry.path().filename() << '\n'; } catch(const fs::filesystem_error& e) { std::cout << e.what() << '\n'; } }

Possible output:

Current dir: "/tmp/1588616534.9884143"