Function operator<=

tests/framework/src/doctest.cpp:709–709

bool operator< (const String& lhs, const String& rhs) { return lhs.compare(rhs) < 0; }
bool operator> (const String& lhs, const String& rhs) { return lhs.compare(rhs) > 0; }
bool operator<=(const String& lhs, const String& rhs) { return (lhs != rhs) ? lhs.compare(rhs) < 0 : true; }
bool operator>=(const String& lhs, const String& rhs) { return (lhs != rhs) ? lhs.compare(rhs) > 0 : true; }

std::ostream& operator<<(std::ostream& s, const String& in) { return s << in.c_str(); }