[libstdc++ PATCH/RFC] Aggressive space optimization for std::vector

[Gabriel Dos Reis]

Gerald Pfeifer <gerald@pfeifer.com> writes:

| Before someone approves/installs this patch, would you mind sending me
| an updated version, Doug, so that I can perform experiments using real-
| world code?

I, for one, would like to see hard data and ways to reproduce them
before the patch got applied.

I'm still of the opinion that this sort of space optimizations is better
handled bt the compiler (which has enough information) and the linker.

-- Gaby