NAME
wctob —
wide-character to single-byte conversion
SYNOPSIS
#include <stdio.h>
#include <wchar.h>
int wctob(wint_t c);
DESCRIPTION
[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 (“POSIX.1”) defers to the ISO C standard.
The wctob () function shall determine
whether c corresponds to a member of the extended
character set whose character representation is a single byte when in the
initial shift state.
The behavior of this function shall be affected by the LC_CTYPE category of the current locale.
RETURN VALUE
The wctob () function shall return EOF if
c does not correspond to a character with length one in
the initial shift state. Otherwise, it shall return the single-byte
representation of that character as an
unsigned
char converted to
int.
ERRORS
No errors are defined.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
btowc(3), the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <wchar.h>
CHANGE HISTORY
First released in Issue 5. Included for alignment with ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”) (E).
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