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'\" te .\" Copyright (c) 1992, The X/Open Company Ltd. All rights reserved. .\" Portions Copyright (c) 2004, 2014, Oracle and/or its affiliates. All rights reserved. .\" Oracle gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at http://www.opengroup.org/bookstore/. .\" The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in The Oracle Solaris, from IEEE Std 1003.1, 2008 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2001-2008 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. 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. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html. This notice shall appear on any product containing this material. .TH iswalpha 3C "21 Oct 2014" "Oracle Solaris 11.4" "Standard C Library Functions" .SH NAME iswalpha, isenglish, isideogram, isnumber, isphonogram, isspecial, iswalnum, iswascii, iswblank, iswcntrl, iswdigit, iswgraph, iswlower, iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswalpha_l, iswalnum_l, iswblank_l, iswcntrl_l, iswdigit_l, iswgraph_l, iswlower_l, iswprint_l, iswpunct_l, iswspace_l, iswupper_l, iswxdigit_l \- wide-character code classification functions .SH SYNOPSIS .LP .nf #include <wchar.h> #include <wctype.h> \fBint\fR \fBiswalpha\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBisenglish\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBisideogram\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBisnumber\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBisphonogram\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBisspecial\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswalnum\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswascii\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswblank\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswcntrl\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswdigit\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswgraph\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswlower\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswprint\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswpunct\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswspace\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswupper\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf \fBint\fR \fBiswxdigit\fR(\fBwint_t\fR \fIwc\fR); .fi .LP .nf #include <wctype.h> \fBint\fR \fBiswalpha_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswalnum_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswblank_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswcntrl_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswdigit_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswgraph_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswlower_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswprint_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswpunct_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswspace_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswupper_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .LP .nf \fBint\fR \fBiswxdigit_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIlocale\fR); .fi .SH DESCRIPTION .sp .LP These functions whose names don't end with \fB_l\fR test whether \fIwc\fR is a wide-character code representing a character of a particular class defined in the \fBLC_CTYPE\fR category of the current locale. .sp .LP In all cases, \fIwc\fR is a \fBwint_t\fR, the value of which must be a wide-character code corresponding to a valid character in the current locale or must equal the value of the macro \fBWEOF\fR. If the argument has any other values, the behavior is undefined. .sp .ne 2 .mk .na \fB\fBiswalpha(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "alpha" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBisenglish(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing an English language character, excluding \fBASCII\fR characters. .RE .sp .ne 2 .mk .na \fB\fBisideogram(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing an ideographic language character, excluding \fBASCII\fR characters. .RE .sp .ne 2 .mk .na \fB\fBisnumber(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing digit [0\(mi9], excluding \fBASCII\fR characters. .RE .sp .ne 2 .mk .na \fB\fBisphonogram(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a phonetic language character, excluding \fBASCII\fR characters. .RE .sp .ne 2 .mk .na \fB\fBisspecial(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a special language character, excluding \fBASCII\fR characters. .RE .sp .ne 2 .mk .na \fB\fBiswalnum(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "alpha" or "digit" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswascii(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing an \fBASCII\fR character. .RE .sp .ne 2 .mk .na \fB\fBiswblank(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "blank" in the program's current locale. This function is not available to applications conforming to standards prior to SUSv3. See \fBstandards\fR(7). .RE .sp .ne 2 .mk .na \fB\fBiswlower(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "lower" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswcntrl(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "cntrl" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswdigit(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "digit" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswgraph(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "graph" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswprint(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "print" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswpunct(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "punct" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswspace(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "space" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswupper(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "upper" in the program's current locale. .RE .sp .ne 2 .mk .na \fB\fBiswxdigit(\fR\fIwc\fR\fB)\fR\fR .ad .RS 19n .rt Tests whether \fIwc\fR is a wide-character code representing a character of class "xdigit" in the program's current locale. .RE .sp .LP Functions whose name end with \fB_l\fR accept locale represented by second argument <\fBlocale\fR>, and tests \fIwc\fR in the locale specified, instead of in the current locale. Except which locale the test is done in, same test is done as done by corresponding function whose name doesn't end with \fB_l\fR. .sp .LP The behavior is undefined if the <\fBlocale\fR> argument is the special locale object \fBLC_GLOBAL_LOCALE\fR or is not a valid locale object handle. .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ CSI Enabled _ Interface Stability See below _ MT-Level MT-Safe .TE .sp .sp .LP The \fBiswalpha()\fR, \fBiswalnum()\fR, \fBiswblank()\fR, \fBiswcntrl()\fR, \fBiswdigit()\fR, \fBiswgraph()\fR, \fBiswlower()\fR, \fBiswprint()\fR, \fBiswpunct()\fR, \fBiswspace()\fR, \fBiswupper()\fR, and \fBiswxdigit()\fR \fBiswalpha_l()\fR, \fBiswalnum_l()\fR, \fBiswblank_l()\fR, \fBiswcntrl_l()\fR, \fBiswdigit_l()\fR, \fBiswgraph_l()\fR, \fBiswlower_l()\fR, \fBiswprint_l()\fR, \fBiswpunct_l()\fR, \fBiswspace_l()\fR, \fBiswupper_l()\fR, and \fBiswxdigit_l()\fR functions are Standard. .SH SEE ALSO .sp .LP \fBlocaledef\fR(1), \fBduplocale\fR(3C), \fBfreelocale\fR(3C), \fBnewlocale\fR(3C), \fBsetlocale\fR(3C), \fBstdio\fR(3C), \fBuselocale\fR(3C), \fBascii\fR(7), \fBattributes\fR(7), \fBstandards\fR(7)