Fix/PowBackwardKernel

Context

Fixes Pow Backward Kernel

Fixes #22 (closed)

Modified files

• PowImpl_backward_kernels.hpp, PowImpl.hpp, PowImpl.cpp and Test_PowImpl.cpp, add Pow Backward kernel and unit tests;

TODO

• Fix Pow Backward kernel

include/aidge/backend/cpu/operator/PowImpl.hpp

@@ -24,7 +24,8 @@ namespace Aidge {
 // Operator implementation entry point for the backend
 using PowImpl_cpu = OperatorImpl_cpu<Pow_Op,
     void(const std::vector<std::size_t>&, const std::vector<std::size_t>&, const std::vector<std::size_t>&, const void*, const void*,void*),
-    void(const std::vector<std::size_t>&, const std::vector<std::size_t>&, const std::vector<std::size_t>&, const void*, const void*, void*)>;
+    void(const std::vector<std::size_t>&, const std::vector<std::size_t>&, const std::vector<std::size_t>&, const void*, const void*, const void*, void*, void*)>;
+
 
 // Implementation entry point registration to Operator
 REGISTRAR(Pow_Op, "cpu", Aidge::PowImpl_cpu::create);