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

Merged

tkoeppe merged 35 commits intomainfrom

motions-2024-11-lwg-1

Dec 16, 2024

Commits on Dec 16, 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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[ostream.formatted.print, print.fun] Move "only" to a clearer place

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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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