wctomb(3C)
NAME
wctomb − convert a wide-character code to a character
SYNOPSIS
#include <stdlib.h>
int wctomb(char ∗s, wchar_t wchar);
DESCRIPTION
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.
RETURN VALUES
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.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe with exceptions |
| CSI | Enabled |
SEE ALSO
mblen(3C), mbstowcs(3C), mbtowc(3C), setlocale(3C), wcstombs(3C), attributes(5)
NOTES
The wctomb() function can be used safely in a multi-thread application, as long as setlocale(3C) is not being called to change the locale.
SunOS 5.6 — Last change: 20 Dec 1996