1.\" Copyright (c) 1989, 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)isascii.3 5.1 (Berkeley) 05/02/91 7.\" 8.Dd 9.Dt ISASCII 3 10.Os 11.Sh NAME 12.Nm isascii 13.Nd test for ASCII character 14.Sh SYNOPSIS 15.Fd #include <ctype.h> 16.Ft int 17.Fn isascii "int c" 18.Sh DESCRIPTION 19The 20.Fn isascii 21function tests for an 22.Tn ASCII 23character, which is any character 24for which either 25.Xr iscntrl 3 26(character codes 000 through 037 and also including 270177) or 28.Xr isprint 3 29(character codes 040 through 0176) is true. 30.Sh SEE ALSO 31.Xr isalnum 3 , 32.Xr isalpha 3 , 33.Xr iscntrl 3 , 34.Xr isdigit 3 , 35.Xr isgraph 3 , 36.Xr islower 3 , 37.Xr isprint 3 , 38.Xr ispunct 3 , 39.Xr isspace 3 , 40.Xr isupper 3 , 41.Xr isxdigit 3 , 42.Xr toascii 3 , 43.Xr tolower 3 , 44.Xr toupper 3 , 45.Xr stdio 3 46.Xr ascii 7 47.Sh STANDARDS 48The 49.Fn isascii 50function conforms to 51.St -ansiC . 52