std::ostrstream::~ostrstream - std::ostrstream::~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.
If str() was called on a dynamic ostrstream and freeze(false) was
not called after
that, this destructor leaks memory.
// 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
}