When does template instantiation bloat matter in practice?

Question

It seems that in C++ and D, languages which are statically compiled and in which template metaprogramming is a popular technique, there is a decent amount of concern about t

Answer 1

Template instantion bloat IS a matter in practice, because it can increases ( a lot!!! ) compile and link time.

I personnaly thinks that c++ #1 problem is compil time, and it's mainly due to template.

I worked on a project with about 50 libs. We had our own rtti system using templates. I had to rewrite because of the template bloat

Here is some numbers:

• libs went from 640 mbytes to 420 mbytes
• temps went from 4.3 gbytes to 2.9 gbytes
• full rebuild went from 19:30 to 13:10