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WCTOMB !!!WCTOMB NAME SYNOPSIS DESCRIPTION RETURN VALUE CONFORMING TO SEE ALSO NOTES ---- !!NAME wctomb - convert a wide character to a multibyte sequence !!SYNOPSIS __#include __''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, 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 represented 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. ----
4 pages link to
wctomb(3)
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unicode(7)
Man3w
MB_CUR_MAX(3)
wctob(3)
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