What are the best practices for SFINAE in C++?

What are the best practices for SFINAE in C++?

SFINAE, or Substitution Failure Is Not An Error, is a powerful feature in C++. Best practices include using it for template specialization and type traits.

Can you give an example of SFINAE in action?

Sure! Here's a simple example: you can use SFINAE to enable a function only if a type has a specific member function.

What are some common pitfalls to avoid with SFINAE?

Common pitfalls include overusing SFINAE, which can lead to complex code, and not providing clear error messages when substitutions fail.

How does SFINAE compare to other template metaprogramming techniques?

SFINAE is often preferred for its clarity and ability to gracefully handle type errors, unlike techniques that may cause compilation failures.