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Re: [PATCH] PR libstdc++/87135 Rehash only when necessary (LWG2156)

On 21/09/18 18:10 +0200, François Dumont wrote:

Here is the patch complement.
load_factor.cc failure revealed a bug in load factor management. Now computation of _M_next_resize is consistent throughout the different places where it is set. 

The 2 other tests only have to be adapted.

    PR libstdc++/87135
    * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
    Use __builtin_floor to compute _M_next_resize.
    * testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt.
    * testsuite/23_containers/unordered_set/hash_policy/prime_rehash.cc:
    Adapt.

Now fully tested under x86_64.

Ok to commit ?


OK, thanks.
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