Re: [Boost-users] g++ compilation is slow with Boost's constructs

Subject: Re: [Boost-users] g++ compilation is slow with Boost's constructs
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2010-09-12 22:28:56

On 06/09/2010 23:23, Ilya Murav'jov wrote:

> - BOOST_FOREACH costs 0.1 sec
> - boost::function<>  invocation costs 0.05 sec
> - boost::lambda::bind() with placeholders costs 0.1 sec
> - Boost.Range adaptor transformed() costs ~0.1 too
>   As you can see, 10 boost::lambda::bind() slow down your compilation for
>   whole 1 second!

Templates are memoized, so the cost of n instantiations is typically 
quite less than n times the cost of one instantiation.