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Fix unit test: accessing elements in a deque by offsetting a pointer to another element causes undefined behavior.
(grafted from b35d1a122ec2702cb5e6a262b6d34b3098f998b3 )
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@ -48,7 +48,6 @@ void check_stddeque_matrix(const MatrixType& m)
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VERIFY_IS_APPROX(v[21], y);
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v.push_back(x);
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VERIFY_IS_APPROX(v[22], x);
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VERIFY((size_t)&(v[22]) == (size_t)&(v[21]) + sizeof(MatrixType));
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// do a lot of push_back such that the deque gets internally resized
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// (with memory reallocation)
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