2.43 Wide-Character Type Functions

• iswalnum
• iswalpha
• iswblank
• iswcntrl
• iswctype
• iswdigit
• iswgraph
• iswlower
• iswprint
• iswpunct
• iswspace
• iswupper
• iswxdigit
• towlower
• towupper
• wctype