06-15-2018
What encoding / character set do you use? What locale? Are your (text) tools multibyte encoding capable?
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LEARN ABOUT DEBIAN
wctomb
WCTOMB(3) Linux Programmer's Manual WCTOMB(3)
NAME
wctomb - convert a wide character to a multibyte sequence
SYNOPSIS
#include <stdlib.h>
int wctomb(char *s, wchar_t wc);
DESCRIPTION
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 nonzero if the
encoding has nontrivial shift state, or zero if the encoding is stateless.
RETURN VALUE
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 repre-
sented as a multibyte sequence (according to the current locale), -1 is returned.
If s is NULL, the wctomb() function returns nonzero if the encoding has nontrivial shift state, or zero if the encoding is stateless.
CONFORMING TO
C99.
NOTES
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.
SEE ALSO
MB_CUR_MAX(3), wcrtomb(3), wcstombs(3)
COLOPHON
This page is part of release 3.44 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)