#include <iostream>
#include <glibmm.h>

int main() {

	std::string str("Hello") ;
	for ( std::string::const_iterator it = str.begin() ; it != str.end() ; ++ it )
		;
	Glib::ustring ustr("Hello") ;
	for ( Glib::ustring::const_iterator it = ustr.begin() ; it != ustr.end() ; ++ it )
		;
	return 0 ;
}

When compiling, I get the following

test.cpp:18: erreur: no match for ‘operator!=’ in ‘it != Glib::ustring::end()()’

Chris Vine suggests to switch from the single templated

template <class T>
bool operator!=(const ustring_Iterator<T>& lhs, const ustring_Iterator<T>& rhs)

to the twin templated

template <class T1, class T2>
bool operator!=(const ustring_Iterator<T1>& lhs, const ustring_Iterator<T2>& rhs)

to solve this problem. But I am not enough expert to recommend this patch.

Regards,

François