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 non-trivial
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 non-trivial shift state, or zero
if the encoding is stateless.
The behavior of wctomb()
depends on the LC_CTYPE
category of the current locale.
This function is not multi-thread safe. The function wcrtomb(3) provides a better interface to the same functionality.
This page is part of release 2.74 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/.
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Copyright (c) Bruno Haible <haibleclisp.cons.org> This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. References consulted: GNU glibc-2 source code and manual Dinkumware C library reference http://www.dinkumware.com/ OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html ISO/IEC 9899:1999 |