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The recent changes to add assertions to std::array broke the functions that need to be constexpr in C++11, because of the restrictive rules for constexpr functions in C++11. This simply disables the assertions for C++11 mode, so the functions can be constexpr again. libstdc++-v3/ChangeLog: * include/std/array (array::operator[](size_t) const, array::front() const) (array::back() const) [__cplusplus == 201103]: Disable assertions. * testsuite/23_containers/array/element_access/constexpr_element_access.cc: Check for correct values. * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust dg-error line numbers. * testsuite/23_containers/array/debug/constexpr_c++11.cc: New test.
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