Since we have C++14 sized deallocation it seems we should enable the SD-6 feature test appropriately. My reading of the announcement and code along with some experimentation indicates that this feature is allowed in C++11 with -fsized-deallocation.
The feature test macro is thus set whenever flag_sized_deallocation is set rather than language standard. OK if this passes testing on x86_64-linux? Ed
patch_feat_sz_dealloc
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CL_feat_sz_dealloc
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