Is enoki support array index?

[andyyankai]

for example A = [1, 2, 3, 4, 5] I = [0, 1, 1, 2] then A[I] = [A[0], A[1], A[1], A[2]] = [1, 2, 2, 3]

or

    FloatD some = {2.3f, 3.4f, 4.5f, 5.6f, 6.7f, 7.8f};
    IntC index = {1,1,3,3,5};

    FloatD check = some[index];

    value of check should be: [3.4f, 3.4f, 5.6f, 5.6f, 7.8f]

[mp3guy]

This is the gather operation. But, it probably isn't as fast as you might want it to be.

[Speierers]

Indeed, you will need a gather operator to do this (see this)

In your code this should translate to:

FloatD some = {2.3f, 3.4f, 4.5f, 5.6f, 6.7f, 7.8f};
IntC index = {1,1,3,3,5};
FloatD check = gather<FloatD>(some, index); // or something very similar to this

[andyyankai]

When I tried: FloatC some = {2.3f, 3.4f, 4.5f, 5.6f, 6.7f, 7.8f}; IntC index = {1,1,3,3,5}; FloatC check = gather<FloatC>(some, index); its working, but when I change FloatC into FloatD I have an error:

[Speierers]

Could you try with IntD instead of IntC when working with FloatD?

[andyyankai]

Yes, seems working now.