25 template<typename T>
30             T x_;
31             T y_;
33         T data_[2];
37     Vector2(T x, T y);
38     explicit Vector2(const T* v);
42     T Dot(const Vector2<T>& other) const;
43     T Cross(const Vector2<T>& other) const;
45     Vector2 operator-(const Vector2<T>& other) const;
46     Vector2 operator+(const Vector2<T>& other) const;
47     Vector2 operator/(T scale) const;
48     Vector2 operator*(T scale) const;
49     Vector2 operator*(const Vector2<T>& other) const;
50     Vector2& operator*=(const Vector2<T>& other);
51     Vector2& operator+=(const Vector2<T>& other);
53     T operator[](int index) const;
54     T& operator[](int index);
57     bool IsNearEqual(const Vector2& other, T threshold = std::numeric_limits<T>::epsilon()) const;
59     T* GetData();
61     T GetLength() const;
62     T GetSqrLength() const;
63     T Normalize();
71 template<typename T>
72 Vector2<T>::Vector2()  in Vector2()
75 template<typename T>
76 Vector2<T>::Vector2(T x, T y)  in Vector2()
82 template<typename T>
83 Vector2<T>::Vector2(const T* v)  in Vector2()
89 template<typename T>
90 Vector2<T>::~Vector2()  in ~Vector2()
93 template<typename T>
94 Vector2<T> Vector2<T>::Normalized() const  in Normalized()
96     Vector2<T> rNormalize(*this);  in Normalized()
101 template<typename T>
102 T Vector2<T>::Dot(const Vector2<T>& other) const  in Dot()
104     const T* oData = other.data_;  in Dot()
105     T sum = data_[0] * oData[0];  in Dot()
110 template<typename T>
111 T Vector2<T>::Cross(const Vector2<T>& other) const  in Cross()
113     const T* oData = other.data_;  in Cross()
118 template<typename T>
119 Vector2<T> Vector2<T>::operator-() const
121     Vector2<T> rNeg;
122     T* rData = rNeg.data_;
128 template<typename T>
129 Vector2<T> Vector2<T>::operator-(const Vector2<T>& other) const
131     Vector2<T> rSub(*this);
132     T* rData = rSub.data_;
133     const T* oData = other.data_;
139 template<typename T>
140 Vector2<T> Vector2<T>::operator+(const Vector2<T>& other) const
142     Vector2<T> rAdd(*this);
146 template<typename T>
147 Vector2<T> Vector2<T>::operator/(T scale) const
152     const T invScale = 1.0f / scale;
156 template<typename T>
157 Vector2<T> Vector2<T>::operator*(T scale) const
159     Vector2<T> rMult(*this);
160     T* rData = rMult.data_;
167 template<typename T>
168 Vector2<T> Vector2<T>::operator*(const Vector2<T>& other) const
170     Vector2<T> rMult(*this);
174 template<typename T>
175 Vector2<T>& Vector2<T>::operator*=(const Vector2<T>& other)
177     const T* oData = other.data_;
183 template<typename T>
184 Vector2<T>& Vector2<T>::operator+=(const Vector2<T>& other)
191 template<typename T>
192 Vector2<T>& Vector2<T>::operator=(const Vector2<T>& other)
194     const T* oData = other.data_;
200 template<typename T>
201 T Vector2<T>::operator[](int index) const
206 template<typename T>
207 inline T& Vector2<T>::operator[](int index)
212 template<typename T>
213 inline bool Vector2<T>::operator==(const Vector2& other) const
215     const T* oData = other.data_;
217     return (MMI_EQ<T>(data_[0], oData[0])) && (MMI_EQ<T>(data_[1], oData[1]));
220 template<typename T>
221 inline bool Vector2<T>::operator!=(const Vector2& other) const
223     const T* oData = other.data_;
225     return (!MMI_EQ<T>(data_[0], oData[0])) || (!MMI_EQ<T>(data_[1], oData[1]));
228 template<typename T>
229 bool Vector2<T>::IsNearEqual(const Vector2& other, T threshold) const  in IsNearEqual()
231     const T* otherData = other.data_;  in IsNearEqual()
233 …return (MMI_EQ<T>(data_[0], otherData[0], threshold)) && (MMI_EQ<T>(data_[1], otherData[1], thresh…  in IsNearEqual()
236 template<typename T>
237 inline T* Vector2<T>::GetData()  in GetData()
242 template<typename T>
243 T Vector2<T>::GetLength() const  in GetLength()
248 template<typename T>
249 T Vector2<T>::GetSqrLength() const  in GetSqrLength()
251     T sum = data_[0] * data_[0];  in GetSqrLength()
256 template<typename T>
257 T Vector2<T>::Normalize()  in Normalize()
259     T l = GetLength();  in Normalize()
260     if (MMI_EQ<T>(l, 0.0)) {  in Normalize()
264     const T invLen = 1.0f / l;  in Normalize()
271 template<typename T>
272 bool Vector2<T>::IsInfinite() const  in IsInfinite()
277 template<typename T>
278 bool Vector2<T>::IsNaN() const  in IsNaN()