std::ostrstream::~ostrstream
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< cpp | io | ostrstream
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std::ostrstream
Member functions
ostrstream::~ostrstream
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.
[edit] Parameters
(none)
[edit] Notes
If str() was called on a dynamic ostrstream and freeze(false) was not called after that, this destructor leaks memory.
[edit] 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