man3/iswpunct.3

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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
  14 .\"   ISO/IEC 9899:1999
  15 .\"
  16 .TH ISWPUNCT 3  2015-08-08 "GNU" "Linux Programmer's Manual"
  17 .SH NAME
  18 iswpunct \- test for punctuation or symbolic wide character
  19 .SH SYNOPSIS
  20 .nf
  21 .B #include <wctype.h>
  22 .PP
  23 .BI "int iswpunct(wint_t " wc );
  24 .fi
  25 .SH DESCRIPTION
  26 The
  27 .BR iswpunct ()
  28 function is the wide-character equivalent of the
  29 .BR ispunct (3)
  30 function.
  31 It tests whether
  32 .I wc
  33 is a wide character
  34 belonging to the wide-character class "punct".
  35 .PP
  36 The wide-character class "punct" is a subclass of the wide-character class
  37 "graph", and therefore also a subclass of the wide-character class "print".
  38 .PP
  39 The wide-character class "punct" is disjoint from the wide-character class
  40 "alnum" and therefore also disjoint from its subclasses "alpha", "upper",
  41 "lower", "digit", "xdigit".
  42 .PP
  43 Being a subclass of the wide-character class "print",
  44 the wide-character class
  45 "punct" is disjoint from the wide-character class "cntrl".
  46 .PP
  47 Being a subclass of the wide-character class "graph",
  48 the wide-character class
  49 "punct" is disjoint from the wide-character class "space" and its subclass
  50 "blank".
  51 .SH RETURN VALUE
  52 The
  53 .BR iswpunct ()
  54 function returns nonzero
  55 if
  56 .I wc
  57 is a wide-character
  58 belonging to the wide-character class "punct".
  59 Otherwise, it returns zero.
  60 .SH ATTRIBUTES
  61 For an explanation of the terms used in this section, see
  62 .BR attributes (7).
  63 .TS
  64 allbox;
  65 lb lb lb
  66 l l l.
  67 Interface       Attribute       Value
  68 T{
  69 .BR iswpunct ()
  70 T}      Thread safety   MT-Safe locale
  71 .TE
  72 .SH CONFORMING TO
  73 POSIX.1-2001, POSIX.1-2008, C99.
  74 .SH NOTES
  75 The behavior of
  76 .BR iswpunct ()
  77 depends on the
  78 .B LC_CTYPE
  79 category of the
  80 current locale.
  81 .PP
  82 This function's name is a misnomer when dealing with Unicode characters,
  83 because the wide-character class "punct" contains both punctuation characters
  84 and symbol (math, currency, etc.) characters.
  85 .SH SEE ALSO
  86 .BR ispunct (3),
  87 .BR iswctype (3)