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Add check for zero monomial in monomial_coefficient #39256

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@keltecc keltecc commented Jan 3, 2025

Fixes #39255

Added check for zero monomial and corresponding test case.

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  • The title is concise and informative.
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  • I have created tests covering the changes.
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@keltecc keltecc force-pushed the fix-monomial-coefficient branch from 27f754a to d0fe6f3 Compare January 10, 2025 11:45
@fchapoton
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does it work with "is NULL" ?

there is no final dot at the end of error messages (it's a Python general convention)

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keltecc commented Jan 17, 2025

Thank you for review, fixed.

does it work with "is NULL" ?

It works.

there is no final dot at the end of error messages (it's a Python general convention)

I tried to keep consistency with another error message in this function:

        if mon._parent is not self._parent:
            raise TypeError("mon must have same parent as self.")

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Segmentation fault in monomial_coefficient
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