Convert a wide character in a specified manner
#include <wctype.h> wint_t towctrans( wint_t wc, wctrans_t category );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The towctrans() function converts wc, using the mapping described by category. The following functions are equivalent:
| Function | Equivalent wctrans() call |
|---|---|
| towlower( wc ) | towctrans( wc, wctrans("tolower") ) |
| towupper( wc ) | towctrans( wc, wctrans("toupper") ) |
The corresponding converted wide character when the argument is valid; otherwise, the original wide character.
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | Yes |
| Signal handler | Yes |
| Thread | Yes |
"Character manipulation functions" and "Wide-character functions" in Library Reference Summary