Thread: allocating memory?

I have a structure which holds 3 float numbers, I'd like to create an array of this structure of size "iNumberVertices" (an integer).
I'm doing it like this at the moment, but it's not working, could anybody help me out? Here's my code:

Code:

struct vect
      { 
      	float x, y, z; 
      };

struct vect pVerts = vect[iNumberVertices];