| I/O manipulators | ||||
| Print functions(C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
(C++11) | ||||
(C++11) |
| Member functions | ||||
(C++11) | ||||
(C++11) | ||||
(C++26) | ||||
| File operations | ||||
basic_fstream::close | ||||
| Non-member functions | ||||
(C++11) |
void close(); | ||
Closes the associated file.
Effectively callsrdbuf()->close(). If an error occurs during operation,setstate(failbit) is called.
Contents |
(none)
(none)
This function is called by the destructor ofbasic_fstream when the stream object goes out of scope and is not usually invoked directly.
#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:
truetruetruefalsefalsetrue
| 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] |
