[Bug libstdc++/54393] std::getline is almost 10x slower when working on a vstring versus std::string

[bergner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54393

--- Comment #5 from Peter Bergner <bergner at gcc dot gnu.org> 2012-08-29 
13:43:16 UTC ---
Created attachment 28100
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28100
Trunk version of the vstring patch

Here's a trunk version of Adhemerval's vstring patch.