|Parameters||c1 ... cn, n characters|
|Purpose||Determines whether or not the characters are in decreasing order, ignoring case for alphabetic characters.|
|Produces||A Boolean value: true (|
|Preconditions||At least one parameter (verified).|
All the c's are characters (verified).
|Postconditions||The result is a Boolean value.|
The ordering of characters may depend on the Scheme implementation. However, the following are guaranteed: The letters are in alphabetical order from
> (char-ci>=? #\c #\b #\a) #t > (char>=? #\c #\B #\a) #f > (char-ci>=? #\c #\B #\a) #t > (char-ci>=? #\c #\B #\A #\a) #t
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