Define character mapping
#include <wctype.h>
wctrans_t wctrans(const char *property);
libc
The wctrans() function determines a mapping rule for wide-character codes according to the category LC_CTYPE, particularly for use with towctrans().
The following mappings are defined in all locales although additional classes may be defined for LC_CTYPE. Use setlocale()
to modify the category LC_CTYPE.
| Defined Mappings |
|
| tolower |
toupper |
- 0
- Failure; character mapping not valid for current locale
- wctrans_t
- Success; object usable by towctrans()
ANSI
| Safety: | |
|---|
| Cancellation point |
No |
| Interrupt handler |
Yes |
| Signal handler |
Yes |
| Thread |
Yes |
String manipulation functions
Wide-character functions
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