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Commit 046a8476 authored by Jonathan Wakely's avatar Jonathan Wakely Committed by Jonathan Wakely
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PR libstdc++/80893 Fix null dereference in vector<bool> 

	PR libstdc++/80893
	* include/bits/stl_bvector.h (vector<bool>::_M_initialize): Avoid
	null pointer dereference when size is zero.
	* testsuite/23_containers/vector/bool/80893.cc: New.
	* testsuite/util/testsuite_allocator.h (PointerBase::PointerBase):
	Add non-explicit constructor from nullptr.
	(PointerBase::derived() const): Add const-qualified overload.

From-SVN: r248734
parent bde63fde
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