re PR libstdc++/61086 (ubsan detects undefined behaviour in the standard library)
PR libstdc++/61086
* include/bits/stl_iterator.h (__normal_iterator::_M_const_cast):
Remove.
* include/bits/stl_vector.h (vector::insert, vector::erase): Use
arithmetic to obtain a mutable iterator from const_iterator.
* include/bits/vector.tcc (vector::insert): Likewise.
* include/debug/vector (vector::erase): Likewise.
* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc:
Adjust dg-error line number.
* testsuite/23_containers/vector/requirements/dr438/
constructor_1_neg.cc: Likewise.
* testsuite/23_containers/vector/requirements/dr438/
constructor_2_neg.cc: Likewise.
* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc:
Likewise.
From-SVN: r210162