module CsrMatrix
    module Exceptions
        class NullMatrixException < StandardError; end     
        class MatrixDimException < StandardError; end      
        class ArithmeticException < StandardError; end     
        class MatrixTypeException < StandardError; end     
        class DivideByZeroException < StandardError; end   
        class IndexOutOfRangeException < StandardError; end
        class ArgumentNullException < StandardError; end   
    end
end