Repair the <tuple> part of C++20 p1032 Misc constexpr bits.

[gcc.git] / libstdc++-v3 / ChangeLog

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+2019-11-16  Edward Smith-Rowland  <3dw4rd@verizon.net>
+
+       Repair the <tuple> part of C++20 p1032 Misc constexpr bits.
+       * include/bits/uses_allocator.h (__uses_alloc0::_Sink::operaror=)
+       (__use_alloc(const _Alloc&)) : Constexpr.
+
 2019-11-17  Jonathan Wakely  <jwakely@redhat.com>
 
+       * include/std/string_view (basic_string_view(It, End)): Add range
+       constructor and deduction guide from P1391R4.
+       * testsuite/21_strings/basic_string_view/cons/char/range.cc: New test.
+
        * include/bits/regex.h (match_results): Specialize __enable_view_impl.
        * include/bits/stl_set.h (set): Likewise.
        * include/bits/unordered_set.h (unordered_set, unordered_multiset):