basic_string.opEquals
bool opEquals(scope const ref basic_string s) const pure nothrow @safeTwo basic_strings are equal if they represent the same sequence of code units.
bool opEquals(scope const T[] s) const pure nothrow @safeditto
bool opEquals(scope const ref basic_string s) const pure nothrow @safeTwo basic_strings are equal if they represent the same sequence of code units.
bool opEquals(scope const T[] s) const pure nothrow @safeditto