std::basic_istream<CharT,Traits>::~basic_istream
From cppreference.com
< cpp | io | basic istream
virtual ~basic_istream(); | ||
Destructs the input stream.
[edit]Notes
This destructor does not perform any operation on the underlying streambuffer (rdbuf()): the destructors of the derived input streams such as std::basic_ifstream and std::basic_istringstream are responsible for calling the destructors of the streambuffers.
[edit]Example
Run this code
#include <iostream>#include <sstream> void print_stringbuf(std::streambuf* p){std::istream buf(p);// buf shares the buffer with s1int n; buf >> n;std::cout<< n;}// calls the destructor of buf. p remains unaffected int main(){std::istringstream s1("10 20"); print_stringbuf(s1.rdbuf());int n; s1 >> n;std::cout<<','<< n <<'\n';}
Output:
10,20
