tail head cat sleep
QR code linking to this page

Manual Pages  — ISPRINT

NAME

isprint – printing character test (space character inclusive)

CONTENTS

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <ctype.h>

int
isprint(int c);

DESCRIPTION

The isprint() function tests for any printing character, including space (‘ ’). The value of the argument must be representable as an unsigned char or the value of EOF.

In the ASCII character set, this includes the following characters (with their numeric values shown in octal):

040 sp
041 ``!'' 042 `` '' 043 ``#'' 044 ``$''

045 ``%''
046 ``&'' 047 ``''' 050 ``('' 051 ``)''

052 ``*''
053 ``+'' 054 ``,'' 055 ``-'' 056 ``.''

057 ``/''
060 ``0'' 061 ``1'' 062 ``2'' 063 ``3''

064 ``4''
065 ``5'' 066 ``6'' 067 ``7'' 070 ``8''

071 ``9''
072 ``:'' 073 ``;'' 074 ``<'' 075 ``=''

076 ``>''
077 ``?'' 100 ``@'' 101 ``A'' 102 ``B''

103 ``C''
104 ``D'' 105 ``E'' 106 ``F'' 107 ``G''

110 ``H''
111 ``I'' 112 ``J'' 113 ``K'' 114 ``L''

115 ``M''
116 ``N'' 117 ``O'' 120 ``P'' 121 ``Q''

122 ``R''
123 ``S'' 124 ``T'' 125 ``U'' 126 ``V''

127 ``W''
130 ``X'' 131 ``Y'' 132 ``Z'' 133 ``[''

134 ``\''
135 ``]'' 136 ``^'' 137 ``_'' 140 ```''

141 ``a''
142 ``b'' 143 ``c'' 144 ``d'' 145 ``e''

146 ``f''
147 ``g'' 150 ``h'' 151 ``i'' 152 ``j''

153 ``k''
154 ``l'' 155 ``m'' 156 ``n'' 157 ``o''

160 ``p''
161 ``q'' 162 ``r'' 163 ``s'' 164 ``t''

165 ``u''
166 ``v'' 167 ``w'' 170 ``x'' 171 ``y''

172 ``z''
173 ``{'' 174 ``|'' 175 ``}'' 176 ``~''

RETURN VALUES

The isprint() function returns zero if the character tests false and returns non-zero if the character tests true.

COMPATIBILITY

The BSD 4.4 extension of accepting arguments outside of the range of the unsigned char type in locales with large character sets is considered obsolete and may not be supported in future releases. The iswprint() function should be used instead.

SEE ALSO

ctype(3), iswprint(3), ascii(7)

STANDARDS

The isprint() function conforms to ISO/IEC 9899:1990 ("ISO C90").

ISPRINT (3) July 17, 2005

tail head cat sleep
QR code linking to this page


Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

UNIX has been evolving feverishly for close to 30 years, sort of like bacteria in a cesspool — only not as attractive
— John Levine, "Unix for Dummies"