ISPRINT(3) |
FreeBSD 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 (‘
’). 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
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.
STANDARDS
The
isprint() function conforms to ISO/IEC 9899:1990 (“ISO C90”).