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Base Operating System and Extensions Technical Reference, Volume 2

wctob Subroutine

Purpose

Wide-character to single-byte conversion.

Library

Standard library (libc.a)

Syntax

#include <stdio.h>
#include <wchar.h>
int wctob (wint_t c);

Description

The wctob function determines 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 is affected by the LC_CTYPE category of the current locale.

Return Values

The wctob function returns EOF if c does not correspond to a character with length one in the initial shift state. Otherwise, it returns the single-byte representation of that character.

Implementation Specifics

This subroutine is part of Base Operating System (BOS) subroutine.

Related Information

The btowc subroutine.

The wchar.h file.


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