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

# Declarations

virtual ~basic_streambuf();

# 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
}

# Defect reports

# See also

• (constructor)