locale/FreeBSD/ctype.3

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  28 .\"     @(#)ctype.3     8.1 (Berkeley) 6/4/93
  29 .\" $FreeBSD: src/lib/libc/locale/ctype.3,v 1.18 2009/09/04 07:44:58 des Exp $
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  31 .Dd March 30, 2004
  32 .Dt CTYPE 3
  33 .Os
  34 .Sh NAME
  35 .Nm digittoint ,
  36 .Nm isalnum ,
  37 .Nm isalpha ,
  38 .Nm isascii ,
  39 .Nm isblank ,
  40 .Nm iscntrl ,
  41 .Nm isdigit ,
  42 .Nm isgraph ,
  43 .Nm ishexnumber ,
  44 .Nm isideogram ,
  45 .Nm islower ,
  46 .Nm isnumber ,
  47 .Nm isphonogram ,
  48 .Nm isprint ,
  49 .Nm ispunct ,
  50 .Nm isrune ,
  51 .Nm isspace ,
  52 .Nm isspecial ,
  53 .Nm isupper ,
  54 .Nm isxdigit ,
  55 .Nm toascii ,
  56 .Nm tolower ,
  57 .Nm toupper
  58 .Nd character classification macros
  59 .Sh LIBRARY
  60 .Lb libc
  61 .Sh SYNOPSIS
  62 .In ctype.h
  63 .Ft int
  64 .Fn digittoint "int c"
  65 .Ft int
  66 .Fn isalnum "int c"
  67 .Ft int
  68 .Fn isalpha "int c"
  69 .Ft int
  70 .Fn isascii "int c"
  71 .Ft int
  72 .Fn iscntrl "int c"
  73 .Ft int
  74 .Fn isdigit "int c"
  75 .Ft int
  76 .Fn isgraph "int c"
  77 .Ft int
  78 .Fn ishexnumber "int c"
  79 .Ft int
  80 .Fn isideogram "int c"
  81 .Ft int
  82 .Fn islower "int c"
  83 .Ft int
  84 .Fn isnumber "int c"
  85 .Ft int
  86 .Fn isphonogram "int c"
  87 .Ft int
  88 .Fn isspecial "int c"
  89 .Ft int
  90 .Fn isprint "int c"
  91 .Ft int
  92 .Fn ispunct "int c"
  93 .Ft int
  94 .Fn isrune "int c"
  95 .Ft int
  96 .Fn isspace "int c"
  97 .Ft int
  98 .Fn isupper "int c"
  99 .Ft int
 100 .Fn isxdigit "int c"
 101 .Ft int
 102 .Fn toascii "int c"
 103 .Ft int
 104 .Fn tolower "int c"
 105 .Ft int
 106 .Fn toupper "int c"
 107 .Sh DESCRIPTION
 108 The above functions perform character tests and conversions on the integer
 109 .Fa c .
 110 They are available as macros, defined in the include file
 111 .In ctype.h ,
 112 or as true functions in the C library.
 113 See the specific manual pages for more information.
 114 .Sh SEE ALSO
 115 .Xr digittoint 3 ,
 116 .Xr isalnum 3 ,
 117 .Xr isalpha 3 ,
 118 .Xr isascii 3 ,
 119 .Xr isblank 3 ,
 120 .Xr iscntrl 3 ,
 121 .Xr isdigit 3 ,
 122 .Xr isgraph 3 ,
 123 .Xr isideogram 3 ,
 124 .Xr islower 3 ,
 125 .Xr isphonogram 3 ,
 126 .Xr isprint 3 ,
 127 .Xr ispunct 3 ,
 128 .Xr isrune 3 ,
 129 .Xr isspace 3 ,
 130 .Xr isspecial 3 ,
 131 .Xr isupper 3 ,
 132 .Xr isxdigit 3 ,
 133 .Xr toascii 3 ,
 134 .Xr tolower 3 ,
 135 .Xr toupper 3 ,
 136 .Xr wctype 3 ,
 137 .Xr ascii 7
 138 .Sh STANDARDS
 139 These functions, except for
 140 .Fn digittoint ,
 141 .Fn isascii ,
 142 .Fn ishexnumber ,
 143 .Fn isideogram ,
 144 .Fn isnumber ,
 145 .Fn isphonogram ,
 146 .Fn isrune ,
 147 .Fn isspecial
 148 and
 149 .Fn toascii ,
 150 conform to
 151 .St -isoC .