//跨度向量
#include <iostream>
#include <mtl/strided1D.h>
#include <mtl/light1D.h>
#include <mtl/mtl.h>
#include <mtl/util.h>

int
main()
{
  using namespace mtl;

  double dx[20], dy[20];
  for (int i = 0; i < 20; ++i) {
    if (i % 2 == 0) {
      dx[i] = i;
      dy[i] = 2*i;
    } else {
      dx[i] = 0;
      dy[i] = 0;
    }
  }
  light1D<double> x(dx, 20);
 
  strided1D< light1D<double> > sx(x, 2);//跨度为2
 
    light1D<double> y(dy, 20);
   
  strided1D< light1D<double> > sy(y, -2);//跨度为2 反向排列

print_vector(x);
//[0,0,2,0,4,0,6,0,8,0,10,0,12,0,14,0,16,0,18,0,]

print_vector(y);
//[0,0,2,0,4,0,6,0,8,0,10,0,12,0,14,0,16,0,18,0,]

print_vector(sx);
//输出[0,2,4,6,8,10,12,14,16,18,]

print_vector(sy);
//[36,32,28,24,20,16,12,8,4,0,]

  return 0;
}