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Support for no alloc

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評估

難度
4/5
預估耗時
3-5 天
新手友好度
35/100
Issue 類型
功能
描述清晰度
基本清楚
活躍度
停滯
技術堆疊
rust
領域
data, embedded-iot

研究方向

Start by tracing ndarray's feature configuration, the unconditional alloc import, and the definitions of ArrayView2 and allocation-dependent types such as Array2. The change is done when a no-alloc configuration builds for ArrayView2 while alloc-dependent types are excluded; verify with the crate's existing build or test commands.

由索引模型根據 Issue 內容生成。

描述

This may seem like a strange ask, but in the computer vision community we are currently working on trying to develop an abstraction over various color models for images. A very effective way to work with images is to create ArrayView2 for each layer/channel of the image, especially for images which have interpolated components (like YUV420). At least one person (@astraw) in the Rust CV org is working with microcontrollers where alloc is not currently available. Since we are only interested in ArrayView2 specifically, we theoretically should be able to use that without alloc, but currently ndarray unconditionally brings in the alloc crate.

So, the ask is this: if I put in the work and set up a PR, can we add a new alloc feature, where without that feature extern crate alloc; is gated out, and all of the types which require alloc (like Array2) are no longer included? Thanks!

主要語言
Rust
星號
4.3k
分支
391
30 天內沒有已合併 PR

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  3. Fork 儲存庫，在一個分支上完成修改。
  4. 送出 Pull Request，並在描述裡引用這個 Issue 編號。

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