2 ms·

to be fair, C+ header only libraries full of advanced template metaprogramming will also slow down compilation by a few order of magnitude.

• bluGill 4y ago
  I'm hopeful modules will come fast, they seem to fix that issue. Modules are already in C++20, but most compilers don't support them well enough yet.
  • gpderetta 4y ago
    I suspect they will help with the parsing, but not with template instantiation cost which dominates metaprogramming.
    • pjmlp 4y ago
      That is what external templates are for, pre-instantiate all common cases in a binary library.