# std::filesystem::directory_entry::is_directory

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< cpp‎ | filesystem‎ | directory entry

bool is_directory() const; bool is_directory( std::error_code& ec ) const noexcept; |  | (since C++17)

Checks whether the pointed-to object is a directory. Effectively returns std::filesystem::is_directory(status()) or std::filesystem::is_directory(status(ec)), respectively.

### Parameters

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

### Return value

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

### Exceptions

The overload that does not take a std::error_code& parameter throws `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. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. Any overload not marked `noexcept` may throw std::bad_alloc if memory allocation fails.

### Example

Run this code

    #include <iostream>
    #include <filesystem>

    namespace fs = std::filesystem;

    int main()
    {
        fs::directory_entry d1(".");
        fs::directory_entry d2("file.txt");
        fs::directory_entry d3("new_dir");

        std::cout << std::boolalpha
                  << ". d1 " << d1.is_directory() << '\n'
                  << "file.txt d2 " << d2.is_directory() << '\n'
                  // false because it has not been created
                  << "new_dir d3 " << d3.is_directory() << '\n';

        fs::create_directory("new_dir");

        std::cout << "new_dir d3 before refresh " << d3.is_directory() << '\n';
        d3.refresh();
        std::cout << "new_dir d3 after refresh " << d3.is_directory() << '\n';
    }

Possible output:

    . d1 true
    file.txt d2 false
    new_dir d3 false
    new_dir d3 before refresh false
    new_dir d3 after refresh true

### See also

is_directory (C++17) | checks whether the given path refers to a directory (function)

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