void close(); |
Closes the associated file.
Effectively calls rdbuf()->close(). If an error occurs during operation, setstate(failbit) is called.
(none).
(none).
This function is called by the destructor of basic_fstream when the stream object goes out of scope and is not usually invoked directly.
#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
| checks if the stream has an associated file (public member function) |
|
| opens a file and associates it with the stream (public member function) |
|
| flushes the put area buffer and closes the associated file (public member function of std::basic_filebuf<CharT,Traits>) |
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