arm64@manet ch15_04 % g++ -I.. -std=c++11 -O main.cpp neon.cpp -o a.out
arm64@manet ch15_04 % ./a.out
Results for CalcCorrCoef

Value               C++       A64 SIMD
------------------------------------------
sum_x:          2567.00        2567.00
sum_y:          5160.00        5160.00
sum_xx:        88805.00       88805.00
sum_yy:       287412.00      287412.00
sum_xy:       153065.00      153065.00
rho:               0.91           0.91
arm64@manet ch15_04 % g++ -I.. -std=c++11 -S neon.cpp