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77687bc0e1
Replace remaining uses of _GLIBCXX17_CONSTEXPR for constexpr-if, so that we always use constexpr-if in C++11 and C++14. Diagnostic pragmas are used to suppress diagnostics. libstdc++-v3/ChangeLog: * include/bits/char_traits.h (char_traits::assign): Use constexpr-if unconditionally for C++11 and C++14. * include/bits/locale_conv.h (__do_str_codecvt): Likewise. * include/bits/ostream.h (basic_ostream::_S_cast_flt): Likewise. * include/bits/random.tcc (shuffle_order_engine::operator()) (seed_seq::seed_seq(Iter, Iter)): Likewise. * include/bits/shared_ptr_base.h (_Sp_counted_base::_M_release): Likewise. * include/bits/stl_tree.h (_Rb_tree::_M_move_data): Likewise. * include/bits/uniform_int_dist.h (uniform_int_distribution::operator()): Likewise. * include/bits/valarray_array.h (__valarray_default_construct) (__valarray_fill_construct, __valarray_copy_construct) (__valarray_copy_construct, __valarray_destroy_elements): Likewise. * include/experimental/numeric (lcm): Likewise. * include/std/bit (__rotl, __rotr, __countl_zero, __countr_zero) (__popcount, __bit_ceil) Likewise.: * include/std/bitset (operator>>): Likewise. * include/std/charconv (__to_chars_8, __to_chars_i) (__from_chars_alnum_to_val, from_chars): Likewise. * include/tr2/dynamic_bitset (__dynamic_bitset_base): Likewise. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line number. Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com>