std::basic_fstream<CharT,Traits>::close - cppreference.com (original) (raw)

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

#include #include #include   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

| | checks if the stream has an associated file (public member function) [edit] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | opens a file and associates it with the stream (public member function) [edit] | | | flushes the put area buffer and closes the associated file (public member function of std::basic_filebuf<CharT,Traits>) [edit] |