M_PI               25 apps/fft/fft.cpp #ifndef M_PI
M_PI               28 apps/fft/fft.cpp const float kPi = static_cast<float>(M_PI);
M_PI               37 apps/resize/resize.cpp     return sin(float(M_PI) * x) / x;
M_PI                4 test/correctness/newtons_method.cpp #ifndef M_PI
M_PI               58 test/correctness/newtons_method.cpp     T correct = (T)M_PI;