std::ostrstream::~ostrstream (3) - Linux Manuals

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

NAME

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

Synopsis

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