wctrans, wctrans_l—get wide-character translation typeSynopsis
#include <wctype.h> wctrans_t wctrans(const char *c); #include <wctype.h> wctrans_t wctrans_l(const char *c, locale_t locale);
Description
wctrans is a function which takes a string c and gives back
the appropriate wctrans_t type value associated with the string,
if one exists. The following values are guaranteed to be recognized:
"tolower" and "toupper".
wctrans_l is like wctrans but performs the function based on the
locale specified by the locale object locale. If locale is
LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
Returns
wctrans, wctrans_l return 0 and sets errno to EINVAL if the
given name is invalid. Otherwise, it returns a valid non-zero wctrans_t
value.
Portability
wctrans is C99.
wctrans_l is POSIX-1.2008.
No supporting OS subroutines are required.