用new在c ++中分配结构矩阵

Question

for a kind of pattern recognition I have defined a very simple struct

struct object
{
  int color;
  int shape;
}

now I want to allocate a matrix of this struct for all pixel of a picture in c++ (so not with malloc), like I do it for normal fields (matrix) like:

struct object_A = allocate(objects, dim_x, dim_y);

my first try was:

struct object_A MyProgramm::allocate(object object_A, int x, int y)
{

         object var[x][y];   

          return var
}

better surely would be something like:

struct object_A MyProgramm::allocate(object object_A, int x, int y)
{

    var = new struct object* [x];

    for(int i = 0; i < x; i++)
      var[i] = new struct object[y];

    return var
}

Has anybody an idea?

Answer 1

thks. for the creative comment SM, Iam sure, you never startet some years ago!

Ok, I solved the problems alone and here is the final programm

int myprogram::allocate(object** new_object, int x, int y)
{

 if(new_object == NULL)
{
  object** new_object = new object*[x];

 for(int i = 0; i < x; i++)
  new_object[i] = new object[y];

    return 1;
    }

  return 0;
}