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 represented 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 3.25 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)