cython

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# mode: run
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# tag: cpp, werror, no-cpp-locals, cpp11
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from cython.operator cimport dereference as d
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from cython.operator cimport preincrement as incr
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from libcpp.vector cimport vector
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def const_iteration_test(L):
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    """
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    >>> const_iteration_test([1,2,4,8])
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    1
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    2
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    4
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    8
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    """
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    v = new vector[int]()
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    try:
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        for a in L:
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            v.push_back(a)
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        it = v.cbegin()
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        while it != v.cend():
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            a = d(it)
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            incr(it)
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            print(a)
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    finally:
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        del v
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