Slight improvement in Hilbert infill by using constexpr

This commit is contained in:
Vojtech Bubnik 2021-01-15 09:34:50 +01:00
parent 21d01291fb
commit 59911e7c35

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@ -101,9 +101,9 @@ Pointfs FillArchimedeanChords::_generate(coord_t min_x, coord_t min_y, coord_t m
//
static inline Point hilbert_n_to_xy(const size_t n)
{
static const int next_state[16] = { 4,0,0,12, 0,4,4,8, 12,8,8,4, 8,12,12,0 };
static const int digit_to_x[16] = { 0,1,1,0, 0,0,1,1, 1,0,0,1, 1,1,0,0 };
static const int digit_to_y[16] = { 0,0,1,1, 0,1,1,0, 1,1,0,0, 1,0,0,1 };
static constexpr const int next_state[16] { 4,0,0,12, 0,4,4,8, 12,8,8,4, 8,12,12,0 };
static constexpr const int digit_to_x[16] { 0,1,1,0, 0,0,1,1, 1,0,0,1, 1,1,0,0 };
static constexpr const int digit_to_y[16] { 0,0,1,1, 0,1,1,0, 1,1,0,0, 1,0,0,1 };
// Number of 2 bit digits.
size_t ndigits = 0;