WCTRANS
NAME SYNOPSIS DESCRIPTION RETURN VALUE CONFORMING TO SEE ALSO NOTES
wctrans - wide character translation mapping
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The wctrans_t type represents a mapping which can map a wide character to another wide character. Its nature is implementation dependent, but the special value (wctrans_t)0 denotes an invalid mapping. Nonzero wctrans_t values can be passed to the towctrans function to actually perform the wide character mapping.
The wctrans function returns a mapping, given by its name. The set of valid names depends on the LC_CTYPE category of the current locale, but the following names are valid in all locales.
tolower__(3)? mapping
toupper(3) mapping
The wctrans function returns a mapping descriptor if the name is valid. Otherwise it returns (wctrans_t)0.
ISO/ANSI C, UNIX98
The behaviour of wctrans depends on the LC_CTYPE category of the current locale.
2 pages link to wctrans(3):