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NetBSD 6.1.5 - man page for isascii (netbsd section 3)

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ISASCII(3)			   BSD Library Functions Manual 		       ISASCII(3)

     isascii -- test for ASCII character

     Standard C Library (libc, -lc)

     #include <ctype.h>

     isascii(int c);

     The isascii() function tests for an ASCII character, which is any character with a value in
     the range from 0 to 127, inclusive.

     The isascii() is defined on all integer values.

     ctype(3), 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 (``XPG4'') and IEEE Std
     1003.1-2001 (``POSIX.1'').  The IEEE Std 1003.1-2008 (``POSIX.1'') revision however marked
     it as obsolete, noting that isascii() cannot be used portably in a localized application.

BSD					  April 30, 2010				      BSD
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