`<fstream>`

Defines several classes that support iostreams operations on sequences stored in external files.

Syntax

#include <fstream>

Type name	Description
`filebuf`	A type `basic_filebuf` specialized on `char` template parameters.
`fstream`	A type `basic_fstream` specialized on `char` template parameters.
`ifstream`	A type `basic_ifstream` specialized on `char` template parameters.
`ofstream`	A type `basic_ofstream` specialized on `char` template parameters.
`wfstream`	A type `basic_fstream` specialized on `wchar_t` template parameters.
`wifstream`	A type `basic_ifstream` specialized on `wchar_t` template parameters.
`wofstream`	A type `basic_ofstream` specialized on `wchar_t` template parameters.
`wfilebuf`	A type `basic_filebuf` specialized on `wchar_t` template parameters.

Class	Description
`basic_filebuf`	The class template describes a stream buffer that controls the transmission of elements of type `Elem`, whose character traits are determined by the class `Tr`, to and from a sequence of elements stored in an external file.
`basic_fstream`	The class template describes an object that controls insertion and extraction of elements and encoded objects using a stream buffer of class `basic_filebuf`<Elem, Tr>, with elements of type `Elem`, whose character traits are determined by the class `Tr`.
`basic_ifstream`	The class template describes an object that controls extraction of elements and encoded objects from a stream buffer of class `basic_filebuf`<Elem, Tr>, with elements of type `Elem`, whose character traits are determined by the class `Tr`.
`basic_ofstream`	The class template describes an object that controls insertion of elements and encoded objects into a stream buffer of class `basic_filebuf`<Elem, Tr>, with elements of type `Elem`, whose character traits are determined by the class `Tr`.