src/lib/libc/gen/isprint.3 - diff

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version 1.5, 1998/02/05 18:47:19

version 1.5.12.4, 2002/08/01 03:28:10

Line 46

.Sh LIBRARY

.Lb libc

.Sh SYNOPSIS

.Fd #include <ctype.h>

.Fd #include \*[Lt]ctype.h\*[Gt]

.Ft int

.Fn isprint "int c"

.Sh DESCRIPTION

Line 71 returns non-zero if the character tests

.Xr isspace 3 ,

.Xr isupper 3 ,

.Xr isxdigit 3 ,

.Xr stdio 3 ,

.Xr toascii 3 ,

.Xr tolower 3 ,

.Xr toupper 3 ,

.Xr stdio 3 ,

.Xr ascii 7

.Sh STANDARDS

The

.Fn isprint

function conforms to

.St -ansiC .

.Sh CAVEATS

The argument to

.Fn isprint

must be

.Dv EOF

or representable as an

.Li unsigned char ;

otherwise, the result is undefined.