#include "popcount.h" static const uint8_t PopCountLUT8Impl[1 << 8] = { #define B2(n) n, n + 1, n + 1, n + 2 #define B4(n) B2(n), B2(n + 1), B2(n + 1), B2(n + 2) #define B6(n) B4(n), B4(n + 1), B4(n + 1), B4(n + 2) B6(0), B6(1), B6(1), B6(2)}; uint8_t const* PopCountLUT8 = PopCountLUT8Impl; #if !defined(_MSC_VER) //ICE here for msvc static const uint8_t PopCountLUT16Impl[1 << 16] = { #define B2(n) n, n + 1, n + 1, n + 2 #define B4(n) B2(n), B2(n + 1), B2(n + 1), B2(n + 2) #define B6(n) B4(n), B4(n + 1), B4(n + 1), B4(n + 2) #define B8(n) B6(n), B6(n + 1), B6(n + 1), B6(n + 2) #define B10(n) B8(n), B8(n + 1), B8(n + 1), B8(n + 2) #define B12(n) B10(n), B10(n + 1), B10(n + 1), B10(n + 2) #define B14(n) B12(n), B12(n + 1), B12(n + 1), B12(n + 2) B14(0), B14(1), B14(1), B14(2)}; uint8_t const* PopCountLUT16 = PopCountLUT16Impl; #endif