[Bug libstdc++/45133] [c++0x] std::future will crash with NULL deref if get() is called twice

[redi at gcc dot gnu dot org]

------- Comment #3 from redi at gcc dot gnu dot org  2010-07-30 14:39 -------
On second thoughts, concurrent calls to future::get are also undefined, so
simply asserting valid() would be better.  I'll do that asap.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45133