std::basic_ostream::~basic_ostream
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<tbody> </tbody> virtual ~basic_ostream(); |
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basic_ostream . streambuffer (rdbuf()): , std::basic_ofstream std::basic_ostringstream streambuffers.:
Destroys the
basic_ostream object. This destructor does not perform any operation on the underlying streambuffer (rdbuf()): the destructors of the derived output streams such as std::basic_ofstream and std::basic_ostringstream are responsible for calling the destructors of the streambuffers.#include <sstream>
#include <iostream>
void add_words(std::streambuf* p)
{
std::ostream buf(p); // buf shares the buffer with s
buf << " is the answer";
} // calls the destructor of buf. p remains unaffected
int main()
{
std::ostringstream s;
s << 42;
add_words(s.rdbuf());
s << ".";
std::cout << s.str() << '\n';
}
:
42 is the answer.