if (len > (size_t) (curscr->_maxx + 1))
len = (size_t) (curscr->_maxx + 1);
len *= sizeof(curscr->_line[0].text[0]);
for (i = beg; i < end; i++) {
if (len > (size_t) (curscr->_maxx + 1))
len = (size_t) (curscr->_maxx + 1);
len *= sizeof(curscr->_line[0].text[0]);
for (i = beg; i < end; i++) {