void throwIfNotGood(const std::ios& stream, const std::string& file) {
if (!stream.good()) {
std::stringstream ss;
ss << "Cannot open file " << file;
throw std::runtime_error(ss.str());
}
}
void
printstate(const std::ios &ios)
{
if (ios.good()) {
std::cout << "ios.good" << std::endl;
} else if (ios.eof()){
std::cout << "ios.eof" << std::endl;
} else if (ios.fail()){
std::cout << "ios.fail" << std::endl;
} else if (ios.bad()){
std::cout << "ios.bad" << std::endl;
}
}
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();
}
void show_results( std::ios& stm )
{
std::cout << std::boolalpha << "bad: " << stm.bad() << " fail: " << stm.fail()
<< " eof: " << stm.eof() << " good: " << stm.good()
<< " bool(stm): " << bool(stm) << " !stm: " << !stm << '\n' ;
}
//prints the error flags when an attempt to open a file fails
void util::print_state (const std::ios& stream) {
cerr << " good()=" << stream.good();
cerr << " eof()=" << stream.eof();
cerr << " fail()=" << stream.fail();
cerr << " bad()=" << stream.bad();
}