| mblen | Determines the length of a multibyte character. |
| mbstowcs | Converts a multibyte character string to a wide character string. |
| mbtowc | Converts a multibyte character to a wide character. |
For more information about multibyte character subroutines see Subroutines for National Language Support.
For more NLS subroutines see List of National Language Support Subroutines.