Array Spans and std::span

A detailed guide to creating a "view" of an array using std::span, and why we would want to

Ryan McCombe
Updated
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Questions & Answers

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Span vs Vector in C++
When should I use std::span over std::vector in C++? What are the key differences and trade-offs between these two types?
Creating a Span from a Vector
How can I create a std::span from a std::vector in C++? Can you provide an example?
Span Size and Stack Overflow
Is there a limit to the size of a std::span? Could creating a very large std::span lead to a stack overflow?
Lifetime of a Span
What happens if I create a std::span from a vector, and then the vector goes out of scope? Is it safe to continue using the span?
Modifying Elements Through a Span
If I modify an element through a std::span, does it affect the original data? Can you show an example?
Using Span as a Function Parameter
What are the benefits of using std::span as a function parameter instead of a reference to a container like std::vector or std::array?