Function compute_min_run

numpy/core/src/npysort/timsort.cpp:45–56

#define TIMSORT_STACK_SIZE 128

static npy_intp
compute_min_run(npy_intp num)
{
    npy_intp r = 0;

    while (64 < num) {
        r |= num & 1;
        num >>= 1;
    }

    return num + r;
}

typedef struct {
    npy_intp s; /* start pointer */