Fix problem with correct_ans being incorrectly set #261
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This patch uses of the
noInherit
list to remove unwanted fields from propagating to copies of existing objects. This affects the MathObject's Value class'make()
method (and the overridden ones in the Complex and Interval objects). This means that it is fairly far reaching, so we should keep an eye out for unexpected consequences, though I don't think there should be any.This resolves bug 3550, and the unreported but similarly caused problems in Complex and Interval objects.
To test, use
Without the patch, the correct answer will show up as pi rather than the correct value of 0. With the patch, the correct value should be shown.
To test the Complex object, use
and for the corresponding Interval situation, use
Here, make sure the correct answer shows as
(2,3)
rather than[1,5]
.