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isgraph(3) [netbsd man page]

ISGRAPH(3)						   BSD Library Functions Manual 						ISGRAPH(3)

isgraph -- printing character test (space character exclusive) LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <ctype.h> int isgraph(int c); DESCRIPTION
The isgraph() function tests for any printing character except space (' '). RETURN VALUES
The isgraph() function returns zero if the character tests false and returns non-zero if the character tests true. SEE ALSO
ctype(3), isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7) STANDARDS
The isgraph() function conforms to ANSI X3.159-1989 (``ANSI C89''). CAVEATS
The argument to isgraph() must be EOF or representable as an unsigned char; otherwise, the behavior is undefined. See the CAVEATS section of ctype(3) for more details. BSD
April 17, 2008 BSD

Check Out this Related Man Page

ISALPHA(3)						     Linux Programmer's Manual							ISALPHA(3)

isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, islower, isprint, ispunct, isspace, isupper, isxdigit - character classifi- cation routines SYNOPSIS
#include <ctype.h> int isalnum(int c); int isalpha(int c); int isascii(int c); int isblank(int c); int iscntrl(int c); int isdigit(int c); int isgraph(int c); int islower(int c); int isprint(int c); int ispunct(int c); int isspace(int c); int isupper(int c); int isxdigit(int c); DESCRIPTION
These functions check whether c, which must have the value of an unsigned char or EOF, falls into a certain character class according to the current locale. isalnum() checks for an alphanumeric character; it is equivalent to (isalpha(c) || isdigit(c)). isalpha() checks for an alphabetic character; in the standard "C" locale, it is equivalent to (isupper(c) || islower(c)). In some locales, there may be additional characters for which isalpha() is true--letters which are neither upper case nor lower case. isascii() checks whether c is a 7-bit unsigned char value that fits into the ASCII character set. This function is a BSD extension and is also an SVID extension. isblank() checks for a blank character; that is, a space or a tab. This function is a GNU extension. iscntrl() checks for a control character. isdigit() checks for a digit (0 through 9). isgraph() checks for any printable character except space. islower() checks for a lower-case character. isprint() checks for any printable character including space. ispunct() checks for any printable character which is not a space or an alphanumeric character. isspace() checks for white-space characters. In the "C" and "POSIX" locales, these are: space, form-feed ('f'), newline (' '), carriage return (' '), horizontal tab (' '), and vertical tab ('v'). isupper() checks for an uppercase letter. isxdigit() checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F. RETURN VALUE
The values returned are nonzero if the character c falls into the tested class, and a zero value if not. CONFORMING TO
ANSI - C, BSD 4.3. isascii() is a BSD extension and is also an SVID extension. isblank() is a GNU extension. NOTE
The details of what characters belong into which class depend on the current locale. For example, isupper() will not recognize an A - umlaut as an uppercase letter in the default C locale. SEE ALSO
tolower(3), toupper(3), setlocale(3), ascii(7), locale(7) GNU
1995-09-02 ISALPHA(3)
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