wcstombs(3int) [ultrix man page]

wcstombs(3int)															    wcstombs(3int)

Name
       wcstombs - converts a string of type wchar_t into a multibyte character string

Syntax
       #include <stdlib.h>

       int wcstombs (s, pwcs, n)
       char *s;
       const wchar_t *pwcs;
       size_t n;

Arguments
       s       The s argument is a pointer to the resulting multibyte character string.

       pwcs    The pwcs argument is a pointer to the source array of wide characters.

       n       The n argument is the maximum number of resulting bytes in the array pointed to by s.

Description
       The  function converts a sequence of character codes of type from the array pointed to by pwcs into a sequence of multibyte characters. The
       function stores the multibyte characters in the array pointed to by s, stopping if a multibyte character would exceed the limit of n  total
       bytes  or  if a null character is stored. Each character is converted as if by a call to the function. No more than n bytes are modified in
       the array pointed to by s.  This function is affected by the LC_CTYPE category of the current locale.

Return Values
       If a character is encountered that does not correspond to a valid multi-byte  character,  the  function	returns  Otherwise,  the  function
       returns	the  number  of  bytes	modified, not including a terminating null character, if any. The array will not be null-terminated if the
       value returned is n.

See Also
       mblen(3int), mbtowc(3int), mbstowcs(3int), setlocale(3int), wctomb(3int)

																    wcstombs(3int)

WCSTOMBS(3)						   BSD Library Functions Manual 					       WCSTOMBS(3)

NAME

     wcstombs -- converts a wide-character string to a multibyte character string

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <stdlib.h>

     size_t
     wcstombs(char * restrict s, const wchar_t * restrict pwcs, size_t n);

DESCRIPTION

     wcstombs() converts the nul-terminated wide-character string pointed to by pwcs to the corresponding multibyte character string, and stores
     it in the array pointed to by s.  This function may modify the first at most n bytes of the array pointed to by s.  Each character will be
     converted as if wctomb(3) is continuously called, except the internal state of wctomb(3) will not be affected.

     For state-dependent encoding, the wcstombs() implies the result multibyte character string pointed to by s always to begin with an initial
     state.

     The behaviour of wcstombs() is affected by the LC_CTYPE category of the current locale.

     These are the special cases:

     s == NULL	   The wcstombs() returns the number of bytes to store the whole multibyte character string corresponding to the wide-character
		   string pointed to by pwcs.  In this case, n is ignored.

     pwcs == NULL  Undefined (may cause the program to crash).

RETURN VALUES

     wcstombs() returns:

     0 or positive
		   Number of bytes stored in the array pointed to by s.  There are no cases that the value returned is greater than n (unless s is
		   a null pointer).  If the return value is equal to n, the string pointed to by s will not be nul-terminated.

     (size_t)-1    pwcs points to a string containing an invalid wide character.  wcstombs() also sets errno to indicate the error.

ERRORS

     wcstombs() may cause an error in the following case:

     [EILSEQ]		pwcs points to a string containing an invalid wide character.

SEE ALSO

     mbstowcs(3), setlocale(3), wctomb(3)

STANDARDS

     The wcstombs() function conforms to ANSI X3.159-1989 (``ANSI C89'').  The restrict qualifier is added at ISO/IEC 9899:1999 (``ISO C99'').

BSD
								  March 16, 2011							       BSD