towlower
wint_t towlower(wint_t);
PROTO_NORMAL(towlower);
DEF_STRONG(towlower);
while ((l1 = towlower(*s1++)) == (l2 = towlower(*s2++))) {
if (((l1 = towlower(*s1++))) != (l2 = towlower(*s2++))) {
*cp = towlower(*cp);
*cp = towlower(*cp);
*el->el_line.cursor = towlower(c);
d = towlower(c);
check_value(tolower(i), towlower(i), 'c');
return nawk_convert(s, tolower, towlower);
ch = towlower(ch);