[v3] tr2: bool_set, dynamic_bitset, ratio

[Joseph S. Myers]

On Wed, 19 Oct 2011, Ed Smith-Rowland wrote:

> I don't know if there is a paper yet.  I also did rational using the gmp
> library.  I'm wondering if rational should be a template class that could take

Having things in libstdc++ etc. using GMP runs into the same issues as 
libquadmath of not wanting to link in non-libc LGPL code unless required - 
in particular for -static-libstdc++, where you should be able to 
distribute a binary built with -static-libstdc++ without either it having 
a dependency on GMP (unless the relevant features are used) or including 
GMP code with the consequent complications to distribution requirements.  
(Quite apart from GMP changing its SONAME - not under our control, unlike 
libquadmath.)

-- 
Joseph S. Myers
joseph@codesourcery.com