wctrans3
Wide-character translation mapping
Usage
#include <wctype.h>
wctrans_t wctrans(const char *name);
Library
Standard C library (libc, -lc)
Overview
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(3) 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" - realizes the tolower(3) mapping "toupper" - realizes the toupper(3) mapping
Return value
The wctrans() function returns a mapping descriptor if the name is valid. Otherwise, it returns (wctrans_t) 0.
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| wctrans() | Thread safety | MT-Safe locale |
Notes
The behavior of wctrans() depends on the LC_CTYPE category of the current locale.
Releases
14 releases since Debian 2.2 (Potato); the text changed 13 times.