WCTOMB(3) BSD Library Functions Manual WCTOMB(3)NAME
wctomb, wctomb_l -- convert a wide-character code to a character
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
wctomb(char *s, wchar_t wchar);
#include <stdlib.h>
#include <xlocale.h>
int
wctomb_l(char *s, wchar_t wchar, locale_t loc);
DESCRIPTION
The wctomb() function converts a wide character, wchar, into a multibyte character and stores the result in s. The object pointed to by s
must be large enough to accommodate the multibyte character, which may be up to MB_LEN_MAX bytes.
A call with a null s pointer returns nonzero if the current locale requires shift states, zero otherwise; if shift states are required, the
shift state is reset to the initial state.
Although the wctomb() function uses the current locale, the wctomb_l() function may be passed a locale directly. See xlocale(3) for more
information.
RETURN VALUES
If s is NULL, the wctomb() function returns nonzero if shift states are supported, zero otherwise. If s is valid, wctomb() returns the num-
ber of bytes processed in s, or -1 if no multibyte character could be recognized or converted. In this case, wctomb()'s internal conversion
state is undefined.
ERRORS
The wctomb() function will fail if:
[EILSEQ] An invalid multibyte sequence was detected.
[EINVAL] The internal conversion state is invalid.
SEE ALSO mbtowc(3), wcrtomb(3), wcstombs(3), wctob(3), xlocale(3)STANDARDS
The wctomb() function conforms to ISO/IEC 9899:1999 (``ISO C99'').
BSD April 8, 2004 BSD
Check Out this Related Man Page
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 func-
tion, 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 repre-
sented 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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