src/Vec2d.hh

   1 #pragma once
   2
   3 /*
   4         @author: Xinqi Bao
   5         2-D vector, with 2 double vaule points.
   6 */
   7
   8 #include <iostream>
   9
  10 #include "Vec3d.hh"
  11
  12 class Vec2d
  13 {
  14 public:
  15     double x, y;
  16     bool equal(const Vec2d& v) const;
  17     bool equal(const Vec2d* v) const;
  18     double sum() const;
  19
  20     Vec2d();
  21     Vec2d(double x, double y);
  22     Vec2d(const Vec3d& v1, const Vec3d& v2, double z);
  23
  24     friend std::istream& operator>>(std::istream& s, Vec2d& v);
  25     friend std::istream& operator>>(std::istream& s, Vec2d* v);
  26     friend std::ostream& operator<<(std::ostream& s, const Vec2d& v);
  27     friend std::ostream& operator<<(std::ostream& s, const Vec2d* v);
  28 };