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old/9apr26_prerefactor/include/amsculib2/cuvect2.hpp

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+#ifndef __CUVECT2_HPP__
+#define __CUVECT2_HPP__
+
+namespace amscuda
+{
+
+    class cuvect2
+    {
+        public:
+        double x;
+        double y;
+
+
+        __host__ __device__ cuvect2();
+        __host__ __device__ ~cuvect2();
+        __host__ __device__ cuvect2(double _x, double _y);
+
+        __host__ __device__ double& operator[](const int I);
+        __host__ __device__ const double& operator[](const int I) const;
+
+        __host__ __device__ cuvect2 operator+(cuvect2 lhs);
+        __host__ __device__ cuvect2 operator-(cuvect2 lhs);
+        __host__ __device__ cuvect2 operator*(double lhs);
+        __host__ __device__ cuvect2 operator/(double lhs);
+        __host__ __device__ friend cuvect2 operator-(cuvect2 rhs);
+    };
+
+    class cumat2
+    {
+        public:
+        double dat[4];
+
+        __host__ __device__ cumat2();
+        __host__ __device__ ~cumat2();
+        __host__ __device__ double& operator[](const int I);
+        __host__ __device__ double& operator()(const int I, const int J);
+        __host__ __device__ double& at(const int I, const int J);
+
+        __host__ __device__ cumat2 operator+(cumat2 lhs);
+        __host__ __device__ cumat2 operator-(cumat2 lhs);
+        __host__ __device__ cumat2 operator*(double lhs);
+        __host__ __device__ cumat2 operator/(double lhs);
+        __host__ __device__ cuvect2 operator*(cuvect2 lhs);
+        __host__ __device__ cumat2 operator*(cumat2 lhs);
+        __host__ __device__ friend cumat2 operator-(cumat2 rhs);
+
+        __host__ __device__ double det();
+        __host__ __device__ cumat2 transpose();
+        __host__ __device__ cumat2 inverse();
+    };
+
+    __host__ __device__ double cuvect2_dot(cuvect2 a, cuvect2 b);
+    __host__ __device__ double cuvect2_cross(cuvect2 a, cuvect2 b);
+    __host__ __device__ double cuvect2_norm(cuvect2 a);
+    __host__ __device__ cuvect2 cuvect2_normalize(cuvect2 a);
+    __host__ __device__ cuvect2 cuvect2_proj(cuvect2 a, cuvect2 b);
+
+    //2x2 matrix operations
+    //matrix order is assumed to be mat[I,J] = mat[I+3*J]
+
+    //transpose a 2x2 matrix in place
+    __host__ __device__ void mat2_transpose(double *mat2inout);
+    
+    //copies src to dest
+    __host__ __device__ void mat2_copy(double *mat2_dest, const double *mat2_src);
+    
+    //inverts mat?inout[4]
+    __host__ __device__ void mat2_inverse(double *mat2inout);
+    
+    //rotatin matrix from angle
+    __host__ __device__ void mat2_rot_from_angle(double angle, double *mat2);
+
+    //multiplies c = a*b
+    __host__ __device__ void mat2_mult(double *mat2a, double *mat2b, double *mat2c);
+
+    // ret = a*b
+    __host__ __device__ cuvect2 mat2_mult(double *mat2a, cuvect2 b);
+
+
+
+    void test_cuvect2_1();
+    
+
+}; //end namespace amscuda
+
+#endif
+