How do I fix template errors in C++?

I'm getting a lot of template errors in my C++ code. Can you help me understand what's going wrong?

Sure! Template errors in C++ often occur due to type mismatches or incorrect template parameters. Can you share the specific error messages you're seeing?

I have an error that says 'no matching function for call to 'foo<int>'". What does that mean?

This error usually means that the compiler can't find a function template that matches the arguments you're providing. Check if the function template is defined correctly and if you're passing the right types.

I think I might be using the wrong type. How can I check the template instantiation?

You can use the -fverbose-asm flag with your compiler to see the instantiated templates in the assembly output. This can help you debug the types being used.