Span-ify your code

.NET has introduced low(er)-level memory management APIs over the years that can dramatically reduce the number of allocations and improve performance, and first among them is Span<T>.

This repo demonstrates common usage patterns for some of those APIs.

⚠️ Always benchmark and test the code for correctness, especially when using low-level/unsafe APIs.

8️⃣ APIs marked with this icon are available in .NET 8. The rest are available in .NET 7.

Table of contents

Basics

Introduction to APIs and stack allocation

Strings

Creating and manipulating strings

Parsing and formatting

Parsing and formatting values, by way of writing JsonConverters

Buffers

Writing to buffers and streams

Collections

Optimize access to collections

Console

Writing to the Console using UTF-8