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CPolynomial:new
The new method creates an instance of the CPolynomial class. This method returns to the caller a reference to the object it creates. The calling code must assign this reference to a name (see below). If the object cannot be created, nil is returned.
Note: This method's name uses all lower case to present it as the analog of the C++ new operator. Generally, the names of class methods begin with an uppercase letter but new and delete are different.
P = CPolynomial:new()
Default
constructor. The new CPolynomial P has no elements.
P = CPolynomial:new( CPolynomial2 )
This is a copy
constructor. The new CPolynomial P is initialized to the members of the CPolynomial2 argument.
The following example shows the default constructor and destructor pair:
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P = CPolynomial:new() |
-- create a new instance of P of the CPolynomial class. |
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... |
-- other uses of the class go here, between new and delete. |
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P:delete() |
-- deletes the object and its associated memory. |
The next example shows the use of all 3 constructors: default, copy, and initialization:
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P1 = CPolynomial:new() |
-- default constructor |
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P1.Set(3, 4.4) |
-- set only coef[3] |
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P2 = CPolynomial:new(P1) |
-- copy constructor |
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P2:Set(2, 2.0) |
-- set Coef[2] |
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Printf("N = %d", P2:Count()) |
-- result: N = 2 |