1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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10 .\" References consulted:
11 .\" GNU glibc-2 source code and manual
12 .\" Dinkumware C library reference http://www.dinkumware.com/
13 .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
16 .TH WCTYPE 3 2021-03-22 "GNU" "Linux Programmer's Manual"
18 wctype \- wide-character classification
21 .B #include <wctype.h>
23 .BI "wctype_t wctype(const char *" name );
28 type represents a property which a wide character may or
30 In other words, it represents a class of wide characters.
31 This type's nature is implementation-dependent, but the special value
33 denotes an invalid property.
40 to actually test whether a given
41 wide character has the property.
45 function returns a property, given by its name.
47 valid names depends on the
49 category of the current locale, but the
50 following names are valid in all locales.
53 "alnum" \- realizes the \fBisalnum\fP(3) classification function
54 "alpha" \- realizes the \fBisalpha\fP(3) classification function
55 "blank" \- realizes the \fBisblank\fP(3) classification function
56 "cntrl" \- realizes the \fBiscntrl\fP(3) classification function
57 "digit" \- realizes the \fBisdigit\fP(3) classification function
58 "graph" \- realizes the \fBisgraph\fP(3) classification function
59 "lower" \- realizes the \fBislower\fP(3) classification function
60 "print" \- realizes the \fBisprint\fP(3) classification function
61 "punct" \- realizes the \fBispunct\fP(3) classification function
62 "space" \- realizes the \fBisspace\fP(3) classification function
63 "upper" \- realizes the \fBisupper\fP(3) classification function
64 "xdigit" \- realizes the \fBisxdigit\fP(3) classification function
69 function returns a property descriptor
76 For an explanation of the terms used in this section, see
84 Interface Attribute Value
87 T} Thread safety MT-Safe locale
93 POSIX.1-2001, POSIX.1-2008, C99.