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ISGRAPH(3)            DragonFly Library Functions Manual            ISGRAPH(3)


NAME

     isgraph, isgraph_l -- printing character test (space character exclusive)


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <ctype.h>

     int
     isgraph(int c);

     int
     isgraph_l(int c, locale_t locale);


DESCRIPTION

     The isgraph() and isgraph_l() functions test for any printing character
     except space (` ') and other locale-specific space-like characters.  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):

     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 isgraph_l() function takes an explicit locale argument, whereas the
     isgraph() function uses the current global or per-thread locale.


RETURN VALUES

     The isgraph() and isgraph_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 iswgraph() and
     iswgraph_l() functions should be used instead.


SEE ALSO

     ctype(3), ctype_l(3), iswgraph(3), iswgraph_l(3), xlocale(3), ascii(7)


STANDARDS

     The isgraph() function conforms to ISO/IEC 9899:1990 (``ISO C90'').  The
     isgraph_l() function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').

DragonFly 4.3                  December 25, 2013                 DragonFly 4.3

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