tr1::unordered_set<double> bizarre rounding behavior (x86)

[Gabriel Dos Reis]

Michael Veksler <VEKSLER@il.ibm.com> writes:

[...]

| >     2. You don't know the answer. In that case you are supposed to file
| > a PR and trust bug-masters and maintainers about the issue.
| >
| > >   std::tr1::hash<dobule> is implemented in a very bad way.
| > >   it casts double to size_t, which of course does a very poor job on
| big
| > >   values (is the result of 1.0e100 cast to size_t defined ?).
| > >
| > >
| > Thanks. Patches welcome, as usual: contributions are certainly
| > encouraged, especially so from IBM - I would say - generally committed
| > to the project in a constructive, high quality, and friendly way.
| 
| Sorry, I am not on the gcc team (I am working on constraint solvers rather
| than compilers). I performed this review purely voluntarily.

And it is clearly welcome!  I hope more will follow :-)

-- Gaby