signal.7: Note async-signal-safe functions added by POSIX.1-2008 TC1

[thirdparty/man-pages.git] / man3 / iswupper.3

diff --git a/man3/iswupper.3 b/man3/iswupper.3
index ce9cd38e27e955017ec62f9d524c4e6a68cd90c5..e23b3543eaf8af1069c436a1b7f583dc0931ee0d 100644 (file)
--- a/man3/iswupper.3
+++ b/man3/iswupper.3
@@ -1,17 +1,19 @@
 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
 .\"
+.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
 .\" This is free documentation; you can redistribute it and/or
 .\" modify it under the terms of the GNU General Public License as
 .\" published by the Free Software Foundation; either version 2 of
 .\" the License, or (at your option) any later version.
+.\" %%%LICENSE_END
 .\"
 .\" References consulted:
 .\"   GNU glibc-2 source code and manual
 .\"   Dinkumware C library reference http://www.dinkumware.com/
-.\"   OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
+.\"   OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
 .\"   ISO/IEC 9899:1999
 .\"
-.TH ISWUPPER 3  1999-07-25 "GNU" "Linux Programmer's Manual"
+.TH ISWUPPER 3  2015-08-08 "GNU" "Linux Programmer's Manual"
 .SH NAME
 iswupper \- test for uppercase wide character
 .SH SYNOPSIS
@@ -21,46 +23,75 @@ iswupper \- test for uppercase wide character
 .BI "int iswupper(wint_t " wc );
 .fi
 .SH DESCRIPTION
-The \fBiswupper\fP() function is the wide-character equivalent of the
-\fBisupper\fP() function.
-It tests whether \fIwc\fP is a wide character
-belonging to the wide character class "upper".
+The
+.BR iswupper ()
+function is the wide-character equivalent of the
+.BR isupper (3)
+function.
+It tests whether
+.I wc
+is a wide character
+belonging to the wide-character class "upper".
 .PP
-The wide character class "upper" is a subclass of the wide character class
-"alpha", and therefore also a subclass of the wide character class "alnum", of
-the wide character class "graph" and of the wide character class "print".
+The wide-character class "upper" is a subclass of the wide-character class
+"alpha", and therefore also a subclass of the wide-character class "alnum", of
+the wide-character class "graph" and of the wide-character class "print".
 .PP
-Being a subclass of the wide character class "print", the wide character class
-"upper" is disjoint from the wide character class "cntrl".
+Being a subclass of the wide-character class "print", the wide-character class
+"upper" is disjoint from the wide-character class "cntrl".
 .PP
-Being a subclass of the wide character class "graph", the wide character class
-"upper" is disjoint from the wide character class "space" and its subclass
+Being a subclass of the wide-character class "graph", the wide-character class
+"upper" is disjoint from the wide-character class "space" and its subclass
 "blank".
 .PP
-Being a subclass of the wide character class "alnum", the wide character class
-"upper" is disjoint from the wide character class "punct".
+Being a subclass of the wide-character class "alnum", the wide-character class
+"upper" is disjoint from the wide-character class "punct".
 .PP
-Being a subclass of the wide character class "alpha", the wide character class
-"upper" is disjoint from the wide character class "digit".
+Being a subclass of the wide-character class "alpha", the wide-character class
+"upper" is disjoint from the wide-character class "digit".
 .PP
-The wide character class "upper" contains at least those characters \fIwc\fP
-which are equal to \fItowupper(wc)\fP and different from \fItowlower(wc)\fP.
+The wide-character class "upper" contains at least those characters
+.I wc
+which are equal to
+.I towupper(wc)
+and different from
+.IR towlower(wc) .
 .PP
-The wide character class "upper" always contains at least the letters 'A'
-to 'Z'.
-.SH "RETURN VALUE"
-The \fBiswupper\fP() function returns non-zero if \fIwc\fP is a wide character
-belonging to the wide character class "upper".
-Otherwise it returns zero.
-.SH "CONFORMING TO"
-C99.
-.SH "SEE ALSO"
-.BR isupper (3),
-.BR iswctype (3),
-.BR towupper (3)
+The wide-character class "upper" always contains at least the
+letters \(aqA\(aq to \(aqZ\(aq.
+.SH RETURN VALUE
+The
+.BR iswupper ()
+function returns nonzero if
+.I wc
+is a wide character
+belonging to the wide-character class "upper".
+Otherwise, it returns zero.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface      Attribute       Value
+T{
+.BR iswupper ()
+T}     Thread safety   MT-Safe locale
+.TE
+.SH CONFORMING TO
+POSIX.1-2001, POSIX.1-2008, C99.
 .SH NOTES
-The behaviour of \fBiswupper\fP() depends on the LC_CTYPE category of the
+The behavior of
+.BR iswupper ()
+depends on the
+.B LC_CTYPE
+category of the
 current locale.
 .PP
 This function is not very appropriate for dealing with Unicode characters,
 because Unicode knows about three cases: upper, lower and title case.
+.SH SEE ALSO
+.BR isupper (3),
+.BR iswctype (3),
+.BR towupper (3)