[LWG 1] P3504R0 C++ Standard Library Ready Issues#7459

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burblebee wants to merge 35 commits intomainfrom motions-2024-11-lwg-1

+201-145

Commits on Nov 28, 2024

LWG3436 std::construct_at should support arrays
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LWG3899 co_yielding elements of an lvalue generator is unnecessarily inefficient
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LWG3900 The allocator_arg_t overloads of generator::promise_type::operator new should not be constrained
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LWG3918 std::uninitialized_move/_n and guaranteed copy elision
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LWG4014 LWG 3809 changes behavior of some existing std::subtract_with_carry_engine code
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LWG4024 Underspecified destruction of objects created in std::make_shared_for_overwrite/std::allocate_shared_for_overwrite
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LWG4027 possibly-const-range should prefer returning const R&
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LWG4044 Confusing requirements for std::print on POSIX platforms
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LWG4064 Clarify that std::launder is not needed when using the result of std::memcpy
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LWG4072 std::optional comparisons: constrain harder
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LWG4085 ranges::generate_random's helper lambda should specify the return type
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LWG4112 has-arrow should required operator->() to be const-qualified
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LWG4134 Issue with Philox algorithm specification
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LWG4154 The Mandates for std::packaged_task's constructor from a callable entity should consider decaying
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LWG4164 Missing guarantees for forward_list modifiers
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LWG3216 Rebinding the allocator before calling construct/destroy in allocate_shared
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LWG3886 Monad mo' problems
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LWG4084 std::fixed ignores std::uppercase
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LWG4088 println ignores the locale imbued in std::ostream
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LWG4113 Disallow has_unique_object_representations<Incomplete[]>
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LWG4119 generator::promise_type::yield_value(ranges::elements_of<R, Alloc>)'s nested generator may be ill-formed
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LWG4124 Cannot format zoned_time with resolution coarser than seconds
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LWG4126 Some feature-test macros for fully freestanding features are not yet marked freestanding
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LWG4135 The helper lambda of std::erase for list should specify return type as bool
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LWG4140 Useless default constructors for bit reference types
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LWG4141 Improve prohibitions on "additional storage"
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LWG4142 format_parse_context::check_dynamic_spec should require at least one type
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LWG4144 Disallow unique_ptr<T&, D>
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LWG4147 Precondition on inplace_vector::emplace
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LWG4148 unique_ptr::operator* should not allow dangling references
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LWG4153 Fix extra "-1" for philox_engine::max()
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LWG4157 The resolution of LWG3465 was damaged by P2167R3
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LWG4169 std::atomic<T>'s default constructor should be constrained
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LWG4170 contiguous_iterator should require to_address(I{})
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Commits on Dec 13, 2024

[ostream.formatted.print] Remove "only" in wording for LWG4044 as per LWG discussion
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