2004-11-03 13:51:07 +00:00
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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2007-06-20 22:33:04 +00:00
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.TH "ISWXDIGIT" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.\" iswxdigit
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2007-09-20 06:03:25 +00:00
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.SH PROLOG
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This manual page is part of the POSIX Programmer's Manual.
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The Linux implementation of this interface may differ (consult
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the corresponding Linux manual page for details of Linux behavior),
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or the interface may not be implemented on Linux.
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2004-11-03 13:51:07 +00:00
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.SH NAME
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iswxdigit \- test for a hexadecimal digit wide-character code
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.SH SYNOPSIS
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.LP
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\fB#include <wctype.h>
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.br
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.sp
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int iswxdigit(wint_t\fP \fIwc\fP\fB);
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fIiswxdigit\fP() function shall test whether \fIwc\fP is a wide-character
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code representing a character of class
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\fBxdigit\fP in the program's current locale; see the Base Definitions
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volume of IEEE\ Std\ 1003.1-2001, Chapter 7, Locale.
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.LP
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The \fIwc\fP argument is a \fBwint_t\fP, the value of which the application
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shall ensure is a wide-character code
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corresponding to a valid character in the current locale, or equal
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to the value of the macro WEOF. If the argument has any other
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value, the behavior is undefined.
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.SH RETURN VALUE
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.LP
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The \fIiswxdigit\fP() function shall return non-zero if \fIwc\fP is
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a hexadecimal digit wide-character code; otherwise, it
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shall return 0.
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.SH ERRORS
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.LP
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No errors are defined.
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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To ensure applications portability, especially across natural languages,
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only this function and those listed in the SEE ALSO
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section should be used for classification of wide-character codes.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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2007-09-20 17:56:19 +00:00
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\fIiswalnum\fP(), \fIiswalpha\fP(), \fIiswcntrl\fP(), \fIiswctype\fP(),
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\fIiswdigit\fP(), \fIiswgraph\fP(), \fIiswlower\fP(), \fIiswprint\fP(),
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\fIiswpunct\fP(), \fIiswspace\fP(), \fIiswupper\fP(), \fIsetlocale\fP(),
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the Base Definitions volume of
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2004-11-03 13:51:07 +00:00
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IEEE\ Std\ 1003.1-2001, Chapter 7, Locale, \fI<wchar.h>\fP, \fI<wctype.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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