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WCTOMB(3) Library Functions Manual WCTOMB(3)

wctomb, wctomb_lconvert a wide-character code to a character

library “libc”

#include <stdlib.h>

int
wctomb(char *mbchar, wchar_t wchar);

#include <xlocale.h>

int
wctomb_l(char *mbchar, wchar_t wchar, locale_t locale);

The () and wctomb_l() functions convert a wide character wchar into a multibyte character and store the result in mbchar. The object pointed to by mbchar must be large enough to accommodate the multibyte character, which may be up to MB_LEN_MAX bytes.

A call with a null mbchar 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.

The () function takes an explicit locale argument, whereas the wctomb() function uses the current global or per-thread locale.

If mbchar is NULL, the wctomb() and wctomb_l() functions return nonzero if shift states are supported, zero otherwise. If mbchar is valid, wctomb() and wctomb_l() return the number of bytes processed in mbchar, or -1 if no multibyte character could be recognized or converted. In this case, wctomb()'s and wctomb_l()'s internal conversion states are undefined.

The wctomb() and wctomb_l() functions will fail if:

[]
An invalid multibyte sequence was detected.
[]
The internal conversion state is invalid.

mbtowc(3), wcrtomb(3), wcstombs(3), wctob(3), xlocale(3)

The wctomb() function conforms to ISO/IEC 9899:1999 (“ISO C99”).

December 27, 2013 DragonFly-5.6.1