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#include "../Eigen/Core" |
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using namespace Eigen; |
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#ifdef EIGEN_SHOULD_FAIL_TO_BUILD |
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void call_ref(Ref<VectorXf> a) { } |
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#else |
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void call_ref(const Ref<const VectorXf> &a) { } |
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#endif |
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int main() |
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{ |
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VectorXf a(10); |
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call_ref(a+a); |
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}
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