update code and remove error

Src/Containers/FOctree.hpp

Src/Core/FFmmAlgorithmPeriodic.hpp

Src/Core/FFmmAlgorithmThreadProcPeriodic.hpp

Src/Files/FEwalLoader.hpp

Tests/Kernels/testCompareKernels.cpp

Tests/Kernels/testFlopsChebAlgorithm.cpp

Tests/Kernels/testSphericalEwalAlgorithm.cpp

Tests/Utils/testCompareIOTree.cpp

Tests/Utils/testFmmAlgorithmPeriodic.cpp