1.\" Copyright (c) 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the American National Standards Committee X3, on Information 6.\" Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)isgraph.3 8.2 (Berkeley) 12/11/93 33.\" 34.Dd December 19, 2022 35.Dt ISGRAPH 3 36.Os 37.Sh NAME 38.Nm isgraph , 39.Nm isgraph_l 40.Nd printing character test (space character exclusive) 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In ctype.h 45.Ft int 46.Fn isgraph "int c" 47.Ft int 48.Fn isgraph_l "int c" "locale_t loc" 49.Sh DESCRIPTION 50The 51.Fn isgraph 52and 53.Fn isgraph_l 54functions test for any printing character except space 55.Pq Ql "\~" 56and other 57locale-specific space-like characters. 58The value of the argument must be representable as an 59.Vt "unsigned char" 60or the value of 61.Dv EOF . 62.Pp 63In the ASCII character set, this includes the following characters 64(with their numeric values shown in octal): 65.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ 66.It "\&041\ ``!''" Ta "042\ ``""''" Ta "043\ ``#''" Ta "044\ ``$''" Ta "045\ ``%''" 67.It "\&046\ ``&''" Ta "047\ ``'''" Ta "050\ ``(''" Ta "051\ ``)''" Ta "052\ ``*''" 68.It "\&053\ ``+''" Ta "054\ ``,''" Ta "055\ ``-''" Ta "056\ ``.''" Ta "057\ ``/''" 69.It "\&060\ ``0''" Ta "061\ ``1''" Ta "062\ ``2''" Ta "063\ ``3''" Ta "064\ ``4''" 70.It "\&065\ ``5''" Ta "066\ ``6''" Ta "067\ ``7''" Ta "070\ ``8''" Ta "071\ ``9''" 71.It "\&072\ ``:''" Ta "073\ ``;''" Ta "074\ ``<''" Ta "075\ ``=''" Ta "076\ ``>''" 72.It "\&077\ ``?''" Ta "100\ ``@''" Ta "101\ ``A''" Ta "102\ ``B''" Ta "103\ ``C''" 73.It "\&104\ ``D''" Ta "105\ ``E''" Ta "106\ ``F''" Ta "107\ ``G''" Ta "110\ ``H''" 74.It "\&111\ ``I''" Ta "112\ ``J''" Ta "113\ ``K''" Ta "114\ ``L''" Ta "115\ ``M''" 75.It "\&116\ ``N''" Ta "117\ ``O''" Ta "120\ ``P''" Ta "121\ ``Q''" Ta "122\ ``R''" 76.It "\&123\ ``S''" Ta "124\ ``T''" Ta "125\ ``U''" Ta "126\ ``V''" Ta "127\ ``W''" 77.It "\&130\ ``X''" Ta "131\ ``Y''" Ta "132\ ``Z''" Ta "133\ ``[''" Ta "134\ ``\e\|''" 78.It "\&135\ ``]''" Ta "136\ ``^''" Ta "137\ ``_''" Ta "140\ ```''" Ta "141\ ``a''" 79.It "\&142\ ``b''" Ta "143\ ``c''" Ta "144\ ``d''" Ta "145\ ``e''" Ta "146\ ``f''" 80.It "\&147\ ``g''" Ta "150\ ``h''" Ta "151\ ``i''" Ta "152\ ``j''" Ta "153\ ``k''" 81.It "\&154\ ``l''" Ta "155\ ``m''" Ta "156\ ``n''" Ta "157\ ``o''" Ta "160\ ``p''" 82.It "\&161\ ``q''" Ta "162\ ``r''" Ta "163\ ``s''" Ta "164\ ``t''" Ta "165\ ``u''" 83.It "\&166\ ``v''" Ta "167\ ``w''" Ta "170\ ``x''" Ta "171\ ``y''" Ta "172\ ``z''" 84.It "\&173\ ``{''" Ta "174\ ``|''" Ta "175\ ``}''" Ta "176\ ``~''" Ta \& 85.El 86.Pp 87The 88.Fn isgraph_l 89function takes an explicit locale argument, whereas the 90.Fn isgraph 91function uses the current global or per-thread locale. 92.Sh RETURN VALUES 93The 94.Fn isgraph 95and 96.Fn isgraph_l 97functions return zero if the character tests false and 98return non-zero if the character tests true. 99.Sh COMPATIBILITY 100The 101.Bx 4.4 102extension of accepting arguments outside of the range of the 103.Vt "unsigned char" 104type in locales with large character sets is considered obsolete 105and may not be supported in future releases. 106The 107.Fn iswgraph 108or 109.Fn iswgraph_l 110function should be used instead. 111.Sh SEE ALSO 112.Xr ctype 3 , 113.Xr ctype_l 3 , 114.Xr iswgraph 3 , 115.Xr iswgraph_l 3 , 116.Xr xlocale 3 , 117.Xr ascii 7 118.Sh STANDARDS 119The 120.Fn isgraph 121function conforms to 122.St -isoC . 123The 124.Fn isgraph_l 125function conforms to 126.St -p1003.1-2008 . 127