locale/FreeBSD/ctype.3

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  32 .\"     @(#)ctype.3     8.1 (Berkeley) 6/4/93
  33 .\" $FreeBSD: src/lib/libc/locale/ctype.3,v 1.15 2004/06/30 20:09:08 ru Exp $
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  35 .Dd March 30, 2004
  36 .Dt CTYPE 3
  37 .Os
  38 .Sh NAME
  39 .Nm digittoint ,
  40 .Nm isalnum ,
  41 .Nm isalpha ,
  42 .Nm isascii ,
  43 .Nm isblank ,
  44 .Nm iscntrl ,
  45 .Nm isdigit ,
  46 .Nm isgraph ,
  47 .Nm ishexnumber ,
  48 .Nm isideogram ,
  49 .Nm islower ,
  50 .Nm isnumber ,
  51 .Nm isphonogram ,
  52 .Nm isprint ,
  53 .Nm ispunct ,
  54 .Nm isrune ,
  55 .Nm isspace ,
  56 .Nm isspecial ,
  57 .Nm isupper ,
  58 .Nm isxdigit ,
  59 .Nm toascii ,
  60 .Nm tolower ,
  61 .Nm toupper
  62 .Nd character classification macros
  63 .Sh LIBRARY
  64 .Lb libc
  65 .Sh SYNOPSIS
  66 .In ctype.h
  67 .Ft int
  68 .Fn digittoint "int c"
  69 .Ft int
  70 .Fn isalnum "int c"
  71 .Ft int
  72 .Fn isalpha "int c"
  73 .Ft int
  74 .Fn isascii "int c"
  75 .Ft int
  76 .Fn iscntrl "int c"
  77 .Ft int
  78 .Fn isdigit "int c"
  79 .Ft int
  80 .Fn isgraph "int c"
  81 .Ft int
  82 .Fn ishexnumber "int c"
  83 .Ft int
  84 .Fn isideogram "int c"
  85 .Ft int
  86 .Fn islower "int c"
  87 .Ft int
  88 .Fn isnumber "int c"
  89 .Ft int
  90 .Fn isphonogram "int c"
  91 .Ft int
  92 .Fn isspecial "int c"
  93 .Ft int
  94 .Fn isprint "int c"
  95 .Ft int
  96 .Fn ispunct "int c"
  97 .Ft int
  98 .Fn isrune "int c"
  99 .Ft int
 100 .Fn isspace "int c"
 101 .Ft int
 102 .Fn isupper "int c"
 103 .Ft int
 104 .Fn isxdigit "int c"
 105 .Ft int
 106 .Fn toascii "int c"
 107 .Ft int
 108 .Fn tolower "int c"
 109 .Ft int
 110 .Fn toupper "int c"
 111 .Sh DESCRIPTION
 112 The above functions perform character tests and conversions on the integer
 113 .Fa c .
 114 They are available as macros, defined in the include file
 115 .In ctype.h ,
 116 or as true functions in the C library.
 117 See the specific manual pages for more information.
 118 .Sh SEE ALSO
 119 .Xr digittoint 3 ,
 120 .Xr isalnum 3 ,
 121 .Xr isalpha 3 ,
 122 .Xr isascii 3 ,
 123 .Xr isblank 3 ,
 124 .Xr iscntrl 3 ,
 125 .Xr isdigit 3 ,
 126 .Xr isgraph 3 ,
 127 .Xr isideogram 3 ,
 128 .Xr islower 3 ,
 129 .Xr isphonogram 3 ,
 130 .Xr isprint 3 ,
 131 .Xr ispunct 3 ,
 132 .Xr isrune 3 ,
 133 .Xr isspace 3 ,
 134 .Xr isspecial 3 ,
 135 .Xr isupper 3 ,
 136 .Xr isxdigit 3 ,
 137 .Xr toascii 3 ,
 138 .Xr tolower 3 ,
 139 .Xr toupper 3 ,
 140 .Xr wctype 3 ,
 141 .Xr ascii 7
 142 .Sh STANDARDS
 143 These functions, except for
 144 .Fn digittoint ,
 145 .Fn isascii ,
 146 .Fn ishexnumber ,
 147 .Fn isideogram ,
 148 .Fn isnumber ,
 149 .Fn isphonogram ,
 150 .Fn isrune ,
 151 .Fn isspecial
 152 and
 153 .Fn toascii ,
 154 conform to
 155 .St -isoC .