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// error state flags
#include <iostream> // std::cout, std::ios
#include <sstream> // std::stringstream
void print_state (const std::ios& stream) {
std::cout << " good()=" << stream.good();
std::cout << " eof()=" << stream.eof();
std::cout << " fail()=" << stream.fail();
std::cout << " bad()=" << stream.bad();
}
int main () {
std::stringstream stream;
stream.clear (stream.goodbit);
std::cout << "goodbit:"; print_state(stream); std::cout << '\n';
stream.clear (stream.eofbit);
std::cout << " eofbit:"; print_state(stream); std::cout << '\n';
stream.clear (stream.failbit);
std::cout << "failbit:"; print_state(stream); std::cout << '\n';
stream.clear (stream.badbit);
std::cout << " badbit:"; print_state(stream); std::cout << '\n';
return 0;
}
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