   how to get size of 2d array
  how can i get size of array from row and colum seperatlystruct Matrix{float m33[3][3];float m44[4][4];} chaos, enchant;int main(){cout << sizeof(chaos.m33)<< endl;   cout << sizeof(chaos.m44)<< endl;   cout << sizeof(chaos.m33[0][0])<< endl;return 0;}   
float array[x][y]rowsize = sizeof( float ) * xcolsize = sizeof( float ) * ytotalsize = sizeof( float ) * x * yortotalsize = sizeof( array );  isnt there a command that goes something like sizeof(first ->chaos.m33);and secondeditnevermindI remember thats from the stl library for map or set   