Added OpenGL test.

tests/gl/math/vec4.h

@@ -0,0 +1,39 @@
+#ifndef MATH_VECTOR4_H
+#define MATH_VECTOR4_H
+
+#include <iostream>
+#include <cmath>
+
+class Vec3;
+class Quat;
+
+class Vec4 {
+public:
+	float x, y, z, w;
+
+	Vec4(void);
+	Vec4(float x, float y, float z, float w);
+	Vec4(float *v);
+	Vec4(const Vec3 &v, float w = 0.0f);
+	Vec4(const Quat &w);
+	float *ptr(void);
+	Vec4 operator-(void) const;
+	Vec4 operator+(const Vec4 &rhs) const;
+	Vec4 operator-(const Vec4 &rhs) const;
+	Vec4 operator*(float rhs) const;
+	Vec4 operator/(float rhs) const;
+	Vec4 &operator+=(const Vec4 &rhs);
+	Vec4 &operator-=(const Vec4 &rhs);
+	Vec4 &operator*=(float rhs);
+	Vec4 &operator/=(float rhs);
+	bool operator==(const Vec4 &rhs) const;
+	bool operator!=(const Vec4 &rhs) const;
+	float norm(void) const;
+	float normsq(void) const;
+	Vec4 normalized(void) const;
+	float dot(const Vec4 &rhs) const;
+	void print(std::ostream &of) const;
+};
+
+#endif
+