Class
istreambuf_iterator<charT,traits>::proxy
is for exposition only
.An implementation is permitted to provide equivalent functionality without
providing a class with this name
.Class
istreambuf_iterator<charT, traits>::proxy
provides a temporary
placeholder as the return value of the post-increment operator
(
operator++)
.It keeps the character pointed to by the previous value
of the iterator for some possible future access to get the character
.namespace std {
template<class charT, class traits>
class istreambuf_iterator<charT, traits>::proxy {
charT keep_;
basic_streambuf<charT,traits>* sbuf_;
proxy(charT c, basic_streambuf<charT,traits>* sbuf)
: keep_(c), sbuf_(sbuf) { }
public:
charT operator*() { return keep_; }
};
}