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  • Hash : f47db3c7
    Author : Patrick Steinhardt
    Date : 2017-02-02T16:02:57

    vector: do not reverse a vector if it is empty
    
    The code reversing a vector initially determines the rear-pointer by
    simply subtracting 1 from the vector's length. Obviously, this fails if
    the vector is empty, in which case we have an integer overflow.
    
    Fix the issue by returning early if the vector is empty.