NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | NOTES | SEE ALSO | COLOPHON
WCTOMB(3) Linux Programmer's Manual WCTOMB(3)
wctomb - convert a wide character to a multibyte sequence
#include <stdlib.h>
int wctomb(char *s, wchar_t wc);
If s is not NULL, the wctomb() function converts the wide character wc to its
multibyte representation and stores it at the beginning of the character array
pointed to by s. It updates the shift state, which is stored in a static
anonymous variable only known to the wctomb function, and returns the length
of said multibyte representation, that is, the number of bytes written at s.
The programmer must ensure that there is room for at least MB_CUR_MAX bytes at
s.
If s is NULL, the wctomb() function resets the shift state, only known to this
function, to the initial state, and returns non-zero if the encoding has
nontrivial shift state, or zero if the encoding is stateless.
If s is not NULL, the wctomb() function returns the number of bytes that have
been written to the byte array at s. If wc can not be represented as a
multibyte sequence (according to the current locale), -1 is returned.
If s is NULL, the wctomb() function returns non-zero if the encoding has
nontrivial shift state, or zero if the encoding is stateless.
C99.
The behavior of wctomb() depends on the LC_CTYPE category of the current
locale.
This function is not multithread safe. The function wcrtomb(3) provides a
better interface to the same functionality.
MB_CUR_MAX(3), wcrtomb(3), wcstombs(3)
This page is part of release 3.23 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can be found
at http://www.kernel.org/doc/man-pages/.
GNU 1999-07-25 WCTOMB(3)