Subj : Question
To   : Nick Andre
From : Shawn Highfield
Date : Fri Jun 09 2006 10:58 pm

Hello Nick.

09 Jun 06 18:47, you wrote to all:

NA> Im maintaining the source code for a DOS Fido mailer that has been written
NA> in Turbo Pascal 5.5.
NA> What is the "ord" function?

 Quick search of the help:

HOW CHARACTERS ARE INTERNALLY REPRESENTED
Internally, most computers store characters according to the ASCII format.
ASCII stands for American Standard Code for Information Interchange. Characters
are stored according to a numbered sequence, whereby A has a value of 65
decimal, B a value of 66 etc. Several functions which manipulate characters
follow.

   * CHR
     The chr or character position function returns the character associated
with the ASCII value being asked, eg,
           chr( 65 )   will return the character   A
   * ORD
     The ord or ordinal function returns the ASCII value of a requested
character. In essence, it works backwards to the chr function. Ordinal data
types are those which have a predefined, known set of values.
     Each value which follows in the set is one greater than the previous.
Characters and integers are thus ordinal data types.
          ord( 'C' )   will return the value   67
   * SUCC
     The successor function determines the next value or symbol in the set,
thus
          succ( 'd' )  will return  e
   * PRED
     The predecessor function determines the previous value or symbol in the
set, thus
          pred( 'd' )  will return  c

Shawn

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