C point and vector structs/types

typedef struct {
  int16_t    x, y;
} p2i16_t;   //  structure holding the x and y coordinates of a 2d point

typedef struct {
  float_t    x, y;
} p2f_t;   //  structure holding the x and y coordinates of a 2d point

typedef struct {
  double_t    x, y;
} p2d_t;   //  structure holding the x and y coordinates of a 2d point

typedef struct {
  quad_t    x, y;
} p2q_t;   //  structure holding the x and y coordinates of a 2d point


typedef struct {
  int16_t    x, y, z;
} p3i16_t;   //  structure holding the x, y, and z coordinates of a int16_t precision 3d point

typedef struct {
  float_t    x, y, z;
} p3f_t;   //  structure holding the x, y, and z coordinates of a single precision 3d point

typedef struct {
  double_t    x, y, z;
} p3d_t;   //  structure holding the x, y, and z coordinates of a double precision 3d point

typedef struct {
  quad_t    x, y, z;
} p3q_t;   //  structure holding the x and y coordinates of a quad precision 3d point


typedef struct {
  p2i16_t   p1, p2;
} l2i16_t;   //  structure holding Starting point p1 and endpoint p2 of a 2d line int16_t precision

typedef struct {
  p2f_t    p1, p2;
} l2f_t;   //  structure holding Starting point p1 and endpoint p2 of a 2d line float precision

typedef struct {
  p2d_t    p1, p2;
} l2d_t;   //  structure holding Starting point p1 and endpoint p2 of a 2d line double precision

typedef struct {
  p2q_t    p1, p2;
} l2q_t;   //  structure holding Starting point p1 and endpoint p2 of a 2d line quad precision


typedef struct {
  p3i16_t   p1, p2;
} l3i16_t;   //  structure holding Starting point p1 and endpoint p2 of a 3d line float precision

typedef struct {
  p3f_t   p1, p2;
} l3f_t;   //  structure holding Starting point p1 and endpoint p2 of a 3d line float precision

typedef struct {
  p3d_t   p1, p2;
} l3d_t;   //  structure holding Starting point p1 and endpoint p2 of a 3d line double precision

typedef struct {
  p3q_t   p1, p2;
} l3q_t;   //  structure holding Starting point p1 and endpoint p2 of a 3d line quad precision


typedef struct {
  double_t    radius, theta;
} v2d_t;    //    a 2d vector with radius and angle

//  a vector with offset
typedef struct {
    p2d_t       o;  //  origo / offset
    double_t    radius, theta;  //  vector component
} v2do_t;    //    a 2d vector with radius and angle

typedef struct {
  float_t    radius, theta;
} v2f_t;    //    a 2d vector with radius and angle

typedef struct {
  double_t    radius, thetax, thetay, thetaz;
} v3d_t;    //    a 3d vector with radius and 3 angles