cogsys-tuebingen / cslibs_math Goto Github PK

Dear authors,

Thanks for your opensource code, here when I build this package, the terminal gives me some error like this:

Error showed in terminal is

cslibs_math/statistics/stable_distribution.hpp:241:80: error: operands to ?: have different types ‘const Eigen::CwiseUnaryOp<Eigen::internal::scalar_abs_op, const Eigen::Matrix<double, 3, 1> >’ and ‘cslibs_math::statistics::StableDistribution<double, 3ul, 3ul>::eigen_values_t {aka Eigen::Matrix<double, 3, 1>}’
return (dirty_eigenvalues_ && valid()) ? update_return_eigen() : (abs ? eigen_values_.cwiseAbs() : eigen_values_);

The reference code is

I notice that the c++ operator ? a : b , a and b must be the same type, so I think this code confused me.

Looking forward to your reply!
Thanks again!

...
In file included from /home/workspace/src/cslibs_math/cslibs_math/test/hausdorff.cpp:1:
In file included from /home/workspace/src/cslibs_math/cslibs_math/include/cslibs_math/linear/hausdorff.hpp:5:
/home/workspace/src/cslibs_math/cslibs_math/include/cslibs_math/statistics/distribution.hpp:28:27: error: constexpr variable 'sqrt_2_M_PI' must be initialized by a constant expression
static constexpr double sqrt_2_M_PI = std::sqrt(2 * M_PI);
...

The reason is that std::sqrt is not defined as constexpr according to C++ standard (gcc is too permissive here)

Respected developers of the package
While building the package I encountered the error "array must be initialized with a brace-enclosed initializer, array must be initialized with a brace-enclosed initializer error_t error_{0, 0}; "
In the file
cslibs_math/cslibs_math_3d/include/cslibs_math_3d/algorithms/bresenham.hpp:130:22:

Can you address this issue and let me know how this can be solved.. Can it be compiler issue ?

I could not build the library, I keep getting the errors:

[...]
CMake Error at /home/jaan/workspace/src/cslibs_math/cslibs_math_2d/CMakeLists.txt:30 (cslibs_math_add_unit_test_gtest):
Unknown CMake command "cslibs_math_add_unit_test_gtest".
[...]
CMake Error at /home/jaan/workspace/src/cslibs_math/cslibs_math_3d/CMakeLists.txt:32 (cslibs_math_add_unit_test_gtest):
Unknown CMake command "cslibs_math_add_unit_test_gtest".