libstdc%2B%2B/stl/stl_list.h

618     iterator __first1 = begin();
622     while (__first1 != __last1 && __first2 != __last2)
623       *__first1++ = *__first2++;
625       erase(__first1, __last1);
650   iterator __first1 = begin();
652   for ( ; __first1 != __last1 && __first2 != __last2; ++__first1, ++__first2)
653     *__first1 = *__first2;
655     erase(__first1, __last1);
694   iterator __first1 = begin();
698   while (__first1 != __last1 && __first2 != __last2)
699     if (*__first2 < *__first1) {
701       transfer(__first1, __first2, ++__next);
705       ++__first1;
786   iterator __first1 = begin();
790   while (__first1 != __last1 && __first2 != __last2)
791     if (__comp(*__first2, *__first1)) {
793       transfer(__first1, __first2, ++__next);
797       ++__first1;