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The Date extractor shown earlier sets a stream s fail bit under certain conditions. so checking stream state manually was just the way things were done. setstate(); manually sets the status of the istream object to a desired state. if(age < 19){ cin.setstate(ios::failbit); // this sets cin to fail if the Yes, you can set it with ios::setstate , like so: #include #include int main() { std::cout "Hi "; Set error state flag eofbit , failbit and badbit are member constants with goodbit is zero, indicating that none of the other bits is set. Yes, you can set it with ios::setstate, like so: #include #include int main() { std::cout "Hi "; std::cout.setstate(std::ios::failbit); std::cout I am overloading the input stream operator for use with a Time class and would like to manually set the failbit of the input stream if the input doesn't In C++, can you manually set the failbit of a stream How - C++ [ Glasses to protect eyes while coding : amzn.to/3N1ISWI ] In C++, can you manually s Sets ios::failbit and stops if the wide character has no multibyte represen- manip(3C++), sbufpub(3C++), C++ 4.1 Library Reference Manual: Chapter 4,Yes, you can set it with ios::setstate , like so: #include #include int main() { std::cout "Hi "; failbit is generally set by an operation when the error is related to the internal logic of the operation itself; further operations on the stream may be