I am getting used to using Google's Ceres-Solver, but I can't understand this C++ syntax (even with the description).
What exactly is going on here? :
template <typename T>
bool operator()(const T* const x, T* residual) const {
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2What part don't you understand? – NathanOliver Jun 08 '16 at 20:56
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2This may help: http://stackoverflow.com/questions/356950/c-functors-and-their-uses – NathanOliver Jun 08 '16 at 20:57
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Extending on @NathanOliver 's comments, here's a piece on templated functions that happily uses a functor as an example: http://en.cppreference.com/w/cpp/language/member_template – user4581301 Jun 08 '16 at 21:05