ISPRINT(3)             FreeBSD Library Functions Manual             ISPRINT(3)

NAME

     isprint, isprint_l - printing character test (space character inclusive)

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <ctype.h>

     int
     isprint(int c);

     int
     isprint_l(int c, locale_t loc);

DESCRIPTION

     The isprint() and isprint_l() functions test 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 ``~''

     The isprint_l() function takes an explicit locale argument, whereas the
     isprint() function uses the current global or per-thread locale.

RETURN VALUES

     The isprint() and isprint_l() functions return zero if the character
     tests false and return 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() or
     iswprint_l() function should be used instead.

SEE ALSO

     ctype(3), ctype_l(3), iswprint(3), iswprint_l(3), xlocale(3), ascii(7)

STANDARDS

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

HISTORY

     The isprint() function first appeared in Version 7 AT&T UNIX.

FreeBSD 15.1-STABLE-HBSD       December 19, 2022                    ISPRINT(3)