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# std::basic_fstream::close

From cppreference.com
< cpp‎ | io‎ | basic fstream

[edit template]

void close(); |  |

Closes the associated file.

Effectively calls `rdbuf()->close()`. If an error occurs during operation, setstate(failbit) is called.

### [edit] Parameters

(none)

### [edit] Return value

(none)

### [edit] Notes

This function is called by the destructor of basic_fstream when the stream object goes out of scope and is not usually invoked directly.

### [edit] Example

Run this code

    #include <string>
    #include <fstream>
    #include <iostream>

    int main()
    {
        std::fstream f1("example1", std::ios::out),
                     f2("example2", std::ios::out),
                     f3("example3", std::ios::out);

        std::cout << std::boolalpha
                  << f1.is_open() << '\n'
                  << f2.is_open() << '\n'
                  << f3.is_open() << '\n';

        f1.close();
        f2.close();

        std::cout << f1.is_open() << '\n'
                  << f2.is_open() << '\n'
                  << f3.is_open() << '\n';
    }

Possible output:

    true
    true
    true
    false
    false
    true

### [edit] See also

is_open | checks if the stream has an associated file (public member function) [edit]
open | opens a file and associates it with the stream (public member function) [edit]
close | flushes the put area buffer and closes the associated file (public member function of `std::basic_filebuf`) [edit]

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