%module{Slic3r::XS};
%package{Slic3r::Object::XS};

#include <list>
#include <vector>

%{
PROTOTYPES: DISABLE

std::vector<unsigned int>
get_layer_range(z_array, min_z, max_z)
    std::vector<unsigned int>* z_array;
    unsigned int min_z;
    unsigned int max_z;
    CODE:
        RETVAL.resize(2);
        
        unsigned int bottom = 0;
        unsigned int top = z_array->size()-1;
        while (1) {
            unsigned int mid = bottom + floor((top - bottom)/2.0);
            if (mid == top || mid == bottom) {
                RETVAL[0] = mid;
                break;
            }
            if ((*z_array)[mid] > min_z) {
                top = mid;
            } else {
                bottom = mid;
            }
        }
        top = z_array->size()-1;
        while (1) {
            unsigned int mid = bottom + ceil((top - bottom)/2.0);
            if (mid == top || mid == bottom) {
                RETVAL[1] = mid;
                break;
            }
            if ((*z_array)[mid] < max_z) {
                bottom = mid;
            } else {
                top = mid;
            }
        }
        delete z_array;
    OUTPUT:
        RETVAL

%}