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ISUPPER(3)                  BSD Programmer's Manual                 ISUPPER(3)

NAME
     isupper - upper-case character test

SYNOPSIS
     #include <&lt;ctype.h>&gt;

     int
     isupper(int c);

DESCRIPTION
     The isupper() function tests for any upper-case letter.  In the ASCII
     character set, this includes the following characters:


     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''

RETURN VALUES
     The isupper() function returns zero if the character tests false and re-
     turns non-zero if the character tests true.

SEE ALSO
     ctype(3),  ascii(7)

STANDARDS
     The isupper function conforms to ANSI C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1