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RedHat 9 (Linux i386) - man page for wctomb (redhat section 3)

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 rep-
       resentation 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, i.e. 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.

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 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.

CONFORMING TO
       ISO/ANSI C, UNIX98

SEE ALSO
       wcrtomb(3), wcstombs(3), MB_CUR_MAX(3)

NOTES
       The behaviour of wctomb depends on the LC_CTYPE category of the current locale.

       This function is not multi-thread safe. The function wcrtomb provides a	better	interface
       to the same functionality.

GNU					    1999-07-25					WCTOMB(3)


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