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package SPVM::Comparator::String;
1;
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=head1 Name
SPVM::Comparator::String - Interface Type for String Comparation Callback
=head1 Usage
   
  use Comparator::String;
   
  my $comparator = (Comparator::String)method : int ($a : string, $b : string); {
    return $a cmp $b;
  };
   
  my $result = $comparator->(3, 5);
=head1 Description
L<Comparator::String|SPVM::Comparator::String> is the interface type for the string comparation callback.
=head1 Interface Methods
C<required method : int ($a : string, $b : string);>
This method must receive two values that types are C<string> and return the following value.
If the first argument is greater than the second argument, returns 1. If the first argument is lower than the second argument, returns -1. If the first argument is equal to the second argument, returns 0.
=head1 Copyright & License
Copyright (c) 2023 Yuki Kimoto
MIT License