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RocketLink!--> Man page versions: OpenBSD FreeBSD Others

ISASCII(3)                OpenBSD Programmer's Manual               ISASCII(3)

     isascii - ASCII character test

     #include <ctype.h>

     isascii(int c);

     The isascii() function tests for an ASCII character, which is any charac-
     ter with a value less than or equal to 0177.

     The isascii() macro returns zero if the character tests false or non-zero
     if the character tests true.

     isalnum(3),  isalpha(3),  isblank(3),  iscntrl(3),  isdigit(3),
     isgraph(3),  islower(3),  isprint(3),  ispunct(3),  isspace(3),
     isupper(3),  isxdigit(3),  stdio(3),  toascii(3),  tolower(3),
     toupper(3),  ascii(7)

     The isascii() function conforms to X/Open Portability Guide Issue 4

OpenBSD 2.6                       May 2, 1991                                1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.

(Corrections, notes, and links courtesy of RocketAware.com)

Behavior when (ch & 0x80) not portable. (Linux, WIN16 and WIN32 false; Solaris undefined when signed char)
setlocale(3), when provided, may change the behavior.
Often provided as both a function and a macro. #undef the macro to access the function version.

[Detailed Topics]
FreeBSD Sources for isascii(3) functions
OpenBSD sources for isascii(3)

[Overview Topics]

Up to: Character Tests and Operations - isblank, toupper, etc.

RocketLink!--> Man page versions: OpenBSD FreeBSD Others

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