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// modifying flags with setf/unsetf
#include <iostream> // std::cout, std::ios
int main () {
std::cout.setf ( std::ios::hex, std::ios::basefield ); // set hex as the basefield
std::cout.setf ( std::ios::showbase ); // activate showbase
std::cout << 100 << '\n';
std::cout.unsetf ( std::ios::showbase ); // deactivate showbase
std::cout << 100 << '\n';
return 0;
}
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