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ISUPPER(3)		 BSD Library Functions Manual		    ISUPPER(3)

     isupper — upper-case character test

     Standard C Library (libc, -lc)

     #include <ctype.h>

     isupper(int c);

     The isupper() function tests for any upper-case letter.  The value of the
     argument must be representable as an unsigned char or the value of EOF.

     In the ASCII character set, this includes the following characters (with
     their numeric values shown in octal):

     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''

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

     The 4.4BSD extension of accepting arguments outside of the range of the
     unsigned char type in locales with large character sets is considered
     obsolete and may not be supported in future releases.  The iswupper()
     function should be used instead.

     ctype(3), iswupper(3), toupper(3), ascii(7)

     The isupper() function conforms to ISO/IEC 9899:1990 (“ISO C90”).

BSD				 July 17, 2005				   BSD

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