NAME¶

std::ostrstream::~ostrstream - std::ostrstream::~ostrstream

Synopsis¶

virtual ~ostrstream(); (deprecated in C++98)
(removed in C++26)

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 <iostream>
#include <strstream>

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