How to create and empty matrix of a given size in a way that is compatible with codegen
8 ビュー (過去 30 日間)
古いコメントを表示
I have a function that is writing to an output matrix (y).
I can create y in the function using:
y = zeros(size(x));
x is a variable size large array and using zeros() is inefficient because it initializes the array with zeros that are then going to be overwritten.
I was wondering if there is a way to do this more efficiently?
I've tried a lot of the options I can find so far but none are compatible with codegen.
Thanks very much, as always,
John
2 件のコメント
採用された回答
Richard McCormack
2022 年 5 月 11 日
編集済み: Richard McCormack
2022 年 5 月 11 日
Hi John,
I think coder.nullcopy is what you are looking for:
Be aware that this function is 'unsafe', in the sense that you can access uninitialized memory after using it.
Best,
Richard
その他の回答 (0 件)
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!