Do c++ templates make programs slow?

Question

I have heard from many people that usage of templates make the code slow. Is it really true. I\'m currently building a library. There are places where if templates are not c

Answer 1

Since template instantiation happens at compile time, there is no run-time cost to using templates (as a matter of fact templates are sometimes used to perform certain computations at compile-time to make the program run faster). Heavy use of templates can however lead to long compile times.