mblen(3c) [sunos man page]
mblen(3C) Standard C Library Functions mblen(3C) NAME
mblen - get number of bytes in a character SYNOPSIS
#include <stdlib.h> int mblen(const char *s, size_t n); DESCRIPTION
If s is not a null pointer, mblen() determines the number of bytes constituting the character pointed to by s. It is equivalent to: mbtowc((wchar_t *)0, s, n); A call with s as a null pointer causes this function to return 0. The behavior of this function is affected by the LC_CTYPE category of the current locale. RETURN VALUES
If s is a null pointer, mblen() returns 0. It s is not a null pointer, mblen() returns 0 (if s points to the null byte), the number of bytes that constitute the character (if the next n or fewer bytes form a valid character), or -1 (if they do not form a valid character) and may set errno to indicate the error. In no case will the value returned be greater than n or the value of the MB_CUR_MAX macro. ERRORS
The mblen() function may fail if: EILSEQ Invalid character sequence is detected. USAGE
The mblen() function can be used safely in multithreaded applications, as long as setlocale(3C) is not being called to change the locale. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe with exceptions | +-----------------------------+-----------------------------+ SEE ALSO
mbstowcs(3C), mbtowc(3C), setlocale(3C), wcstombs(3C), wctomb(3C), attributes(5), standards(5) SunOS 5.10 24 Jul 2002 mblen(3C)
Check Out this Related Man Page
wctomb(3C) Standard C Library Functions wctomb(3C) NAME
wctomb - convert a wide-character code to a character SYNOPSIS
#include <stdlib.h> int wctomb(char *s, wchar_t wchar); DESCRIPTION
The wctomb() function determines the number of bytes needed to represent the character corresponding to the wide-character code whose value is wchar. It stores the character representation (possibly multiple bytes) in the array object pointed to by s (if s is not a null pointer). At most MB_CUR_MAX bytes are stored. A call with s as a null pointer causes this function to return 0. The behavior of this function is affected by the LC_CTYPE category of the current locale. RETURN VALUES
If s is a null pointer, wctomb() returns 0 value. If s is not a null pointer, wctomb() returns -1 if the value of wchar does not correspond to a valid character, or returns the number of bytes that constitute the character corresponding to the value of wchar. In no case will the value returned be greater than the value of the MB_CUR_MAX macro. ERRORS
No errors are defined. USAGE
The wctomb() function can be used safely in a multithreaded application, as long as setlocale(3C) is not being called to change the locale. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe with exceptions | +-----------------------------+-----------------------------+ SEE ALSO
mblen(3C), mbstowcs(3C), mbtowc(3C), setlocale(3C), wcstombs(3C), attributes(5), standards(5) SunOS 5.10 14 Aug 2002 wctomb(3C)