Index of non empty cells in a cell array

Hi, i have a cell array like this. How can i know the index of the non empty cells? In this case the result should be index=[1 1 0].(Please note that i want the index, not what isinside the cell)

1×3 cell array

    {[1]}    {[1]}    {0×0 double}

Answer 1

[Birdman]

~cellfun(@isempty,x)

Answer 2

[KL]

 ~cellfun(@isempty,C)

or

 ~cellfun('isempty',C)

The latter is faster (when run for 100000 iteration), so prefer that if you have a larger cell array.

Elapsed time is 1.224846 seconds.
Elapsed time is 0.301964 seconds.