Cast nullptr to type for manifold support #370
+11
−1
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Without this when ceres version == 2.1.0 we get:
/home/jmclaughlin/colcon_ws/src/perception/fuse/fuse_models/test/test_unicycle_2d_state_cost_function.cpp:102:88: error: call of overloaded ‘GradientChecker(const fuse_models::Unicycle2DStateCostFunction*, std::nullptr_t, ceres::NumericDiffOptions&)’ is ambiguous 102 | ceres::GradientChecker gradient_checker(&cost_function, nullptr, numeric_diff_options);