Preprocessor library optimization

From: vesa_karvonen (vesa_karvonen_at_[hidden])
Date: 2002-01-24 04:32:27

I have been performing some optimization of the preprocessor library 
primitives. Here are the results of running the tests on my laptop:

Before optimization on Comeau 4.2.38:

  0m0.280s   preprocessor_test.cpp
  0m0.110s   logical_test.cpp
  0m0.650s   for_test.cpp
  0m5.280s   repeat_test.cpp
  1m3.000s   arithmetic_test.cpp
  13m2.190s  repeat_2nd_test.cpp
  8m28.110s  list_test.cpp

  22m40.280s TOTAL

After optimization on Comeau 4.2.38:

  0m0.380s   preprocessor_test.cpp (probably due to "cold start")
  0m0.110s   logical_test.cpp
  0m0.380s   for_test.cpp
  0m2.090s   repeat_test.cpp
  0m38.280s  arithmetic_test.cpp
  6m18.930s  repeat_2nd_test.cpp
  5m43.340s  list_test.cpp

  12m44.610s TOTAL

As you can see, the compile times reduced considerably. [Compile 
times on g++ and MSVC++ are much faster (all tests compile under 1 
second on MSVC++).] There are still some opportunities for 
optimization.

I'd be interested to have some way to be able to compile the tests on 
the latest CodeWarrior compilers.

I'll probably device some examples for profiling.