How can I handle errors in C++ templates?

How can I handle errors in C++ templates?

In C++, you can handle errors in templates using static assertions, exception handling, or SFINAE (Substitution Failure Is Not An Error). Which method are you interested in?

Can you explain how static assertions work?

Static assertions allow you to check conditions at compile time. If the condition is false, the compilation fails with a specified message. You use it like this: static_assert(condition, "Error message");.

What about using exceptions in templates?

You can throw exceptions in template functions just like in regular functions. Make sure to catch them appropriately in your code to handle errors gracefully.

Are there any best practices for error handling in templates?

Yes, some best practices include using clear error messages, leveraging static assertions for compile-time checks, and documenting your template's expected behavior.