# std::ostrstream::~ostrstream

From cppreference.com
< cpp‎ | io‎ | ostrstream

virtual ~ostrstream(); |  |

Destroys a `std::ostrstream` object, which also destroys the member std::strstreambuf, which may call the deallocation function if the underlying buffer was dynamically-allocated and not frozen.

### Parameters

(none)

### Notes

If str() was called on a dynamic ostrstream and freeze(false) was not called after that, this destructor leaks memory.

### Example

Run this code

    #include <strstream>
    #include <iostream>

    int main()
    {
        {
            std::ostrstream s; // dynamic buffer
            s << 1.23;
            std::cout << s.str() << '\n';
            s.freeze(false);
        } // destructor called, buffer deallocated

        {
            std::ostrstream s;
            s << 1.23;
            std::cout << s.str() << '\n';
    //        buf.freeze(false);
        } // destructor called, memory leaked
    }

Output:

    1.23
    1.23

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