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NAME
btowc - single byte to wide character conversion
SYNOPSIS
#include <stdio.h> #include <wchar.h> wint_t btowc(int c);
DESCRIPTION
The btowc() function shall determine whether c constitutes a valid (one-byte) character 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 btowc() function shall return 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 shall return the wide-character
representation of that character.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
wctob() , the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The
original Standard can be obtained online at http://www.opengroup.org/unix/online.html .