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Quick question about vertex arrays

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Is there any way of adding data into the vertice container as if it's an array?

struct CUSTOMVERTEX { FLOAT x, y, z; };

CUSTOMVERTEX Vertices[] = {
{ 0.0f, 0.0f, 0.0f},
{ 1.0f, 0.0f, 0.0f},
{ 0.0f, 0.0f, 1.0f},
{ 1.0f, 0.0f, 1.0f},
};

d3ddev->CreateVertexBuffer(sizeof(Vertices) * sizeof(CUSTOMVERTEX), 0, CUSTOMFVF, D3DPOOL_MANAGED, &v_buffer, NULL);

VOID* pVoid;
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, Vertices, sizeof(Vertices));
v_buffer->Unlock();

from that into something like this:

// NOTE: speudo code

CUSTOMVERTEX Vertices[];
Vertices.add(0.0f, 0.0f, 0.0f);
Vertices.add(1.0f, 0.0f, 0.0f);
Vertices.add(0.0f, 0.0f, 1.0f);
Vertices.add(1.0f, 0.0f, 1.0f);

d3ddev->CreateVertexBuffer(sizeof(Vertices) * sizeof(CUSTOMVERTEX), 0, CUSTOMFVF, D3DPOOL_MANAGED, &v_buffer, NULL);

VOID* pVoid;
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, Vertices, sizeof(Vertices));
v_buffer->Unlock();

If you're wondering, I'm planning on stuffing this into a for loop.

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Yes. Something like this for example:

#include <vector>

..


struct CUSTOMVERTEX {
float x, y, z;

CUSTOMVERTEX(float x, float y, float z) : x(x), y(y), z(z) {}
};

...

std::vector<CUSTOMVERTEX> vertices;
vertices.push_back(CUSTOMVERTEX(1.0f, 2.0f, 3.0f));
vertices.push_back(CUSTOMVERTEX(0.0f, 1.0f, 2.0f));
...

CreateVertexBuffer(vertices.size() * sizeof(CUSTOMVERTEX), ....);

memcpy(pVoid, &vertices[0], vertices.size() * sizeof(CUSTOMVERTEX));

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A stl::vector is a wrapper for a resizable array, not a linked list, so no fragmentation here. Otherwise you couldn't do that block copy with memcpy.

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An alternative that should work for other types of lists too is:

CUSTOMVERTEX *destination = (CUSTOMVERTEX*)pVoid;

std::copy(vertices.begin(), vertices.end(), destination);

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