basic_ofstream::basic_ofstream
Creates an object of type basic_ofstream.
basic_ofstream( );
explicit basic_ofstream(
const char *_Filename,
ios_base::openmode _Mode = ios_base::out,
int _Prot = (int)ios_base::_Openprot
);
explicit basic_ofstream(
const wchar_t *_Filename,
ios_base::openmode _Mode = ios_base::out,
int _Prot = (int)ios_base::_Openprot
);
Parameters
_Filename
The name of the file to open._Mode
One of the enumerations in ios_base::openmode._Prot
The default file opening protection.
Remarks
The first constructor initializes the base class by calling basic_ostream(sb), where sb is the stored object of class basic_filebuf<Elem, Tr>. It also initializes sb by calling basic_filebuf<Elem, Tr>.
The second and third constructors initializes the base class by calling basic_ostream(sb). It also initializes sb by calling basic_filebuf<Elem, Tr> and then sb.open(_Filename, _Mode | ios_base::out). If the latter function returns a null pointer, the constructor calls setstate(failbit).
Example
The following example shows how to create a basic_ofstream object and write text to it.
// basic_ofstream_ctor.cpp
// compile with: /EHsc
#include <fstream>
using namespace std;
int main(int argc, char **argv)
{
ofstream ofs("C:\\ofstream.txt");
if (!ofs.bad())
{
ofs << "Writing to a basic_ofstream object..." << endl;
ofs.close();
}
}
Requirements
Header: <fstream>
Namespace: std