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

From cppreference.com
< cpp‎ | io‎ | 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

Run this code

    #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
    }

Output:

    Hello

### Defect reports

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

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 54 | C++98 | the effect of the destructor was not specified | specified as no effect

### See also

(constructor) | constructs a `basic_streambuf` object (protected member function)

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/io/basic_streambuf/%7Ebasic_streambuf&oldid=158555"