43 lines
853 B
C++
43 lines
853 B
C++
#pragma once
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#include <pangolin/platform.h>
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#ifdef HAVE_EIGEN
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# include <Eigen/Core>
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#endif
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namespace pangolin
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{
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// Scalar / Vector agnostic static_cast-like thing
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//
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// e.g. Promote float to double:
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// ComponentCast<double,float>::cast(0.14f);
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//
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// e.g. Promote Eigen::Vector2f to Eigen::Vector2d:
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// ComponentCast<Eigen::Vector2d,Eigen::Vector2f>::cast(Eigen::Vector2f(0.1,0.2);
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template <typename To, typename From>
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struct ComponentCast
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{
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PANGO_HOST_DEVICE
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static To cast(const From& val)
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{
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return static_cast<To>(val);
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}
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};
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#ifdef HAVE_EIGEN
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template <typename To, typename FromDerived>
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struct ComponentCast<To, Eigen::MatrixBase<FromDerived> >
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{
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PANGO_HOST_DEVICE
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static To cast(const Eigen::MatrixBase<FromDerived>& val)
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{
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return val.template cast<typename To::Scalar>();
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}
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};
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#endif
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}
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