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In the event of any discrepancy .\" between these versions and the original IEEE and The Open Group .\" Standard, the original IEEE and The Open Group Standard is the referee .\" document. 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All Rights Reserved. .\" Portions Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved. .\" Copyright 2014 Garrett D'Amore .\" .TH WCHAR.H 3HEAD "Aug 15, 2014" .SH NAME wchar.h, wchar \- wide-character handling .SH SYNOPSIS .LP .nf #include <\fBwchar.h\fR> .fi .SH DESCRIPTION .LP The <\fBwchar.h\fR> header defines the following types: .sp .ne 2 .na \fB\fBwchar_t\fR\fR .ad .RS 13n As described in <\fBstddef.h\fR>. .RE .sp .ne 2 .na \fB\fBwint_t\fR\fR .ad .RS 13n An integer type capable of storing any valid value of \fBwchar_t\fR or \fBWEOF\fR. .RE .sp .ne 2 .na \fB\fBwctype_t\fR\fR .ad .RS 13n A scalar type of a data object that can hold values which represent locale-specific character classification. .RE .sp .ne 2 .na \fB\fBmbstate_t\fR\fR .ad .RS 13n An object type other than an array type that can hold the conversion state information necessary to convert between sequences of (possibly multi-byte) characters and wide characters. If a codeset is being used such that an \fBmbstate_t\fR needs to preserve more than two levels of reserved state, the results are unspecified. .RE .sp .ne 2 .na \fB\fBFILE\fR\fR .ad .RS 13n As described in <\fBstdio.h\fR>. .RE .sp .ne 2 .na \fB\fBsize_t\fR\fR .ad .RS 13n As described in <\fBstddef.h\fR>. .RE .sp .ne 2 .na \fB\fBva_list\fR\fR .ad .RS 13n As described in <\fBstdarg.h\fR>. .RE .sp .LP The implementation supports one or more programming environments in which the width of \fBwint_t\fR is no greater than the width of type \fBlong\fR. The names of these programming environments can be obtained using the \fBconfstr\fR(3C) function or the \fBgetconf\fR(1) utility. .sp .LP The <\fBwchar.h\fR> header defines the following macros: .sp .ne 2 .na \fB\fBWCHAR_MAX\fR\fR .ad .RS 13n The maximum value representable by an object of type \fBwchar_t\fR. .RE .sp .ne 2 .na \fB\fBWCHAR_MIN\fR\fR .ad .RS 13n The minimum value representable by an object of type \fBwchar_t\fR. .RE .sp .ne 2 .na \fB\fBWEOF\fR\fR .ad .RS 13n Constant expression of type \fBwint_t\fR that is returned by several WP functions to indicate end-of-file. .RE .sp .ne 2 .na \fB\fBNULL\fR\fR .ad .RS 13n As described in <\fBstddef.h\fR>. .RE .LP The tag \fBtm\fR is declared as naming an incomplete structure type, the contents of which are described in the header <\fBtime.h\fR>. .LP Inclusion of the <\fBwchar.h\fR> header can make visible all symbols from the headers <\fBctype.h\fR>, <\fBstring.h\fR>, <\fBstdarg.h\fR>, <\fBstddef.h\fR>, <\fBstdio.h\fR>, <\fBstdlib.h\fR>, and <\fBtime.h\fR>. .SH ATTRIBUTES See \fBattributes\fR(5) for descriptions of the following attributes: .sp .TS box; c | c l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE _ Interface Stability Standard .TE .SH SEE ALSO \fBgetconf\fR(1), \fBbtowc\fR(3C), \fBconfstr\fR(3C), \fBfgetwc\fR(3C), \fBgetws\fR(3C), \fBfputwc\fR(3C), \fBfputws\fR(3C), \fBfwide\fR(3C), \fBfwprintf\fR(3C), \fBfwscanf\fR(3C), \fBgetwc\fR(3C), \fBgetwchar\fR(3C), \fBiswalpha\fR(3C), \fBiswctype\fR(3C), \fBmbsinit\fR(3C), \fBmbrlen\fR(3C), \fBmbrtowc\fR(3C), \fBmbsrtowcs\fR(3C), \fBtowlower\fR(3C), \fBtowupper\fR(3C), \fBungetwc\fR(3C), \fBvfwprintf\fR(3C), \fBwcpcpy\fR(3C), \fBwcrtomb\fR(3C), \fBwcscasecmp\fR(3C), \fBwcsdup\fR(3C), \fBwcslen\fR(3C), \fBwcsrtombs\fR(3C), \fBwcstring\fR(3C), \fBwcsstr\fR(3C), \fBwcstod\fR(3C), \fBwcscoll\fR(3C), \fBwcsftime\fR(3C), \fBwcstol\fR(3C), \fBwcstoul\fR(3C), \fBwcswidth\fR(3C), \fBwcsxfrm\fR(3C), \fBwctob\fR(3C), \fBwctype\fR(3C), \fBwcwidth\fR(3C), \fBwmemchr\fR(3C), \fBwmemcmp\fR(3C), \fBwmemcpy\fR(3C), \fBwmemmove\fR(3C), \fBwmemset\fR(3C), \fBstdarg\fR(3EXT), \fBstddef.h\fR(3HEAD), \fBstdio.h\fR(3HEAD), \fBstdlib.h\fR(3HEAD), \fBstring.h\fR(3HEAD), \fBtime.h\fR(3HEAD), \fBwctype.h\fR(3HEAD), \fBattributes\fR(5), \fBstandards\fR(5)