wcstombs_l(3) [osx man page]

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

NAME

     wcstombs, wcstombs_l -- convert a wide-character string to a 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);

     #include <stdlib.h>
     #include <xlocale.h>

     size_t
     wcstombs_l(char *restrict s, const wchar_t *restrict pwcs, size_t n, locale_t loc);

DESCRIPTION

     The wcstombs() function converts a wide character string pwcs into a multibyte character string, s, beginning in the initial conversion
     state.  Up to n bytes are stored in s.  Partial multibyte characters at the end of the string are not stored.  The multibyte character string
     is null terminated, if there is room.

     Although the wcstombs() function uses the current locale, the wcstombs_l() function may be passed a locale directly. See xlocale(3) for more
     information.

RETURN VALUES

     The wcstombs() function returns the number of bytes converted (not including any terminating null), if successful; otherwise, it returns
     (size_t)-1.

ERRORS

     The wcstombs() function will fail if:

     [EILSEQ]		An invalid wide character was encountered.

     [EINVAL]		The conversion state is invalid.

SEE ALSO

     mbstowcs(3), multibyte(3), wcsrtombs(3), wctomb(3), xlocale(3)

STANDARDS

     The wcstombs() function conforms to ISO/IEC 9899:1999 (``ISO C99'').

BSD
								   April 8, 2004							       BSD

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