std::basic_fstream<CharT,Traits>:: close
From cppreference.com
<
cpp
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io
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basic fstream
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void
close
(
)
;
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Closes the associated file.
Effectively calls rdbuf()->close() . If an error occurs during operation, setstate ( failbit ) is called.
Parameters
(none)
Return value
(none)
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.
Example
Run this code
#include <fstream> #include <iostream> #include <string> 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
See also
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checks if the stream has an associated file
(public member function) |
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opens a file and associates it with the stream
(public member function) |
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flushes the put area buffer and closes the associated file
(public member function of
std::basic_filebuf<CharT,Traits>
)
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