What are the limitations of variadic templates in C++14?

What are the limitations of variadic templates in C++14?

Variadic templates in C++14 allow for flexible function and class templates, but they have some limitations. For instance, they can lead to complex error messages, and there's a limit on the number of template parameters that can be passed.

Can you explain the complexity of error messages?

Certainly! When using variadic templates, if there's a mismatch in types or an incorrect number of arguments, the compiler may generate long and cryptic error messages that can be difficult to decipher.

Are there any performance issues with variadic templates?

In general, variadic templates are efficient, but excessive use can lead to code bloat and longer compile times due to the increased complexity of template instantiation.

How do variadic templates compare to traditional function overloading?

Variadic templates provide more flexibility than traditional overloading, allowing for a variable number of arguments of different types. However, they can be harder to read and maintain.