std::basic_streambuf<CharT,Traits>::~basic_streambuf

virtual ~basic_streambuf();

This destructor has no effect: the members of this basic_streambuf (the pointers and the locale) are destructed in accordance with the usual object destruction sequence after this destructor returns. However, since it is declared public virtual, it allows the objects that are derived from std::basic_streambuf to be deleted through a pointer to base class.

Parameters

(none)

Example

#include <fstream>
#include <iostream>

int main()
{
    std::filebuf* fbp = new std::filebuf;
    fbp->open("test.txt", std::ios_base::out);
    fbp->sputn("Hello\n", 6);
    
    std::streambuf* sbp = fbp;
    delete sbp; // the file is closed, output flushed and written
    
    std::ifstream f("test.txt");
    std::cout << f.rdbuf(); // proof
}

Hello

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

See also