Jeff Epler 4f71a2a75a py/parsenum: Avoid undefined behavior parsing floats with large exponents. ...

Fuzz testing combined with the undefined behavior sanitizer found that
parsing unreasonable float literals like 1e+9999999999999 resulted in
undefined behavior due to overflow in signed integer arithmetic, and a
wrong result being returned.

2018-05-21 12:37:57 +10:00

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