iswalnum_l
iswalpha_l
iswblank_l
iswcntrl_l
iswctype_l
iswdigit_l
iswgraph_l
iswlower_l
iswprint_l
iswpunct_l
iswspace_l
iswupper_l
iswxdigit_l
towctrans_l
towlower_l
towupper_l
wctrans_l
wctype_l