Libft(20) - isprint

Libft(20) - isprint

 

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 (` ').  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 (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), ascii(7)

STANDARDS
     The isprint() function conforms to ISO/IEC 9899:1990 (``ISO C90'').

BSD                              July 17, 2005                             BSD

• 출력 가능한 문자이면 non-zero 리턴
• 출력 불가능한 문자이면 0 리턴

 

출력 유무 관련 ASCII 문자 정리 노션

https://www.notion.so/C02-3c419deb64ce40198144f0fee4358dde