1.\"	$NetBSD: isascii.3,v 1.18 2010/04/30 04:46:18 jruoho Exp $
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30.\"     @(#)isascii.3	5.1 (Berkeley) 5/2/91
31.\"
32.Dd April 30, 2010
33.Dt ISASCII 3
34.Os
35.Sh NAME
36.Nm isascii
37.Nd test for ASCII character
38.Sh LIBRARY
39.Lb libc
40.Sh SYNOPSIS
41.In ctype.h
42.Ft int
43.Fn isascii "int c"
44.Sh DESCRIPTION
45The
46.Fn isascii
47function tests for an
48.Tn ASCII
49character, which is any character with a value in the
50range from 0 to 127, inclusive.
51.Pp
52The
53.Fn isascii
54is defined on all integer values.
55.Sh SEE ALSO
56.Xr ctype 3 ,
57.Xr isalnum 3 ,
58.Xr isalpha 3 ,
59.Xr isblank 3 ,
60.Xr iscntrl 3 ,
61.Xr isdigit 3 ,
62.Xr isgraph 3 ,
63.Xr islower 3 ,
64.Xr isprint 3 ,
65.Xr ispunct 3 ,
66.Xr isspace 3 ,
67.Xr isupper 3 ,
68.Xr isxdigit 3 ,
69.Xr stdio 3 ,
70.Xr toascii 3 ,
71.Xr tolower 3 ,
72.Xr toupper 3 ,
73.Xr ascii 7
74.Sh STANDARDS
75The
76.Fn isascii
77function conforms to
78.St -xpg4
79and
80.St -p1003.1-2001 .
81The
82.St -p1003.1-2008
83revision however marked it as obsolete, noting that
84.Fn isascii
85cannot be used portably in a localized application.
86