std::istrstream::rdbuf

From cppreference.com
< cpplrm; | iolrm; | istrstream

strstreambuf* rdbuf() const;

Returns a pointer to the associated std::strstreambuf, casting away its constness (despite the const qualifier on the member function)

Parameters

(none)

Return value

Pointer to the associated std::strsteambuf, with constness cast away.

Example

#include <strstream>
int main()
{
    const std::istrstream buf("example");
    std::strstreambuf* ptr = buf.rdbuf();
}