wctomb - convert a wide-character code to a character
int wctomb(char *s, wchar_t wchar);
The wctomb() function determines the number of bytes needed
to represent the character corresponding to the wide-
character code whose value is wchar. It stores the character
representation (possibly multiple bytes) in the array object
pointed to by s (if s is not a null pointer). At most
MB_CUR_MAX bytes are stored.
A call with s as a null pointer causes this function to
return 0. The behavior of this function is affected by the
LC_CTYPE category of the current locale.
If s is a null pointer, wctomb() returns 0 value. If s is
not a null pointer, wctomb() returns -1 if the value of
wchar does not correspond to a valid character, or returns
the number of bytes that constitute the character
corresponding to the value of wchar.
In no case will the value returned be greater than the value
of the MB_CUR_MAX macro.
No errors are defined.
The wctomb() function can be used safely in a multithreaded
application, as long as setlocale(3C) is not being called to
change the locale.
See attributes(5) for descriptions of the following attri-
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe with exceptions |
| CSI | Enabled |
mblen(3C), mbstowcs(3C), mbtowc(3C), setlocale(3C),
Man(1) output converted with