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man pages section 3: Basic Library Functions

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Updated: Thursday, June 13, 2019
 
 

btowc(3C)

Name

btowc - single-byte to wide-character conversion

Synopsis

#include <stdio.h>
#include <wchar.h>

wint_t btowc(int c);

Description

The btowc() function determines whether c constitutes a valid (one-byte) character in the initial shift state.

The behavior of this function is affected by the LC_CTYPE category of the current locale. See environ(7).

Return Values

The btowc() function returns WEOF if c has the value EOF or if (unsigned char)c does not constitute a valid (one-byte) character in the initial shift state. Otherwise, it returns the wide-character representation of that character.

Errors

No errors are defined.

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe
Standard

See Also

setlocale(3C), wctob(3C), attributes(7), environ(7), standards(7)