WCTRANS(3) Linux Programmer's Manual WCTRANS(3)NAMEwctrans - wide-character translation mapping
SYNOPSIS
#include <wctype.h>
wctrans_t wctrans(const char *name);
DESCRIPTION
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
Multithreading (see pthreads(7))
The wctrans() function is thread-safe with exceptions. It can be
safely used in multithreaded applications, as long as setlocale(3) is
not called to change the locale.
CONFORMING TO
C99.
NOTES
The behavior of wctrans() depends on the LC_CTYPE category of the cur‐
rent locale.
SEE ALSOtowctrans(3)COLOPHON
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GNU 2013-11-04 WCTRANS(3)