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

.../aidge/backend/cpu/operator/ReLUImpl_backward_kernels.hpp

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

...dge/backend/cpu/operator/SigmoidImpl_backward_kernels.hpp

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

.../aidge/backend/cpu/operator/TanhImpl_backward_kernels.hpp

src/operator/ReLUImpl.cpp

src/operator/SigmoidImpl.cpp

src/operator/TanhImpl.cpp