ISPRINT(3) BSD Library Functions Manual ISPRINT(3)
NAME
isprint -- printing character test (space character inclusive)
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 (` '). For single C chars
locales (see multibyte(3)), the value of the argument is representable as an unsigned char or the value
of EOF. In the ASCII character set, this includes the following characters (preceded by their numeric
values, 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 4.4BSD 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), isalnum_l(3), iswprint(3), multibyte(3), ascii(7)
STANDARDS
The isprint() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD August 21, 2004 BSD
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