Jonathan Wakely db9dec545b libstdc++: Fix missing members in std::allocator<void> ... The changes in 75c6a925da were slightly incorrect, because the converting constructor should be noexcept, and the POCMA and is_always_equal traits should still be present in C++20. This fixes it, and slightly refactors the preprocessor conditions and order of members. Also add comments explaining things. The non-standard construct and destroy members added for PR 78052 can be private if allocator_traits<allocator<void>> is made a friend. libstdc++-v3/ChangeLog: * include/bits/allocator.h (allocator<void>) [C++20]: Add missing noexcept to constructor. Restore missing POCMA and is_always_equal_traits. [C++17]: Make construct and destroy members private and declare allocator_traits as a friend. * include/bits/memoryfwd.h (allocator_traits): Declare. * include/ext/malloc_allocator.h (malloc_allocator::allocate): Add nodiscard attribute. Add static assertion for LWG 3307. * include/ext/new_allocator.h (new_allocator::allocate): Add static assertion for LWG 3307. * testsuite/20_util/allocator/void.cc: Check that converting constructor is noexcept. Check for propagation traits and size_type and difference_type. Check that pointer and const_pointer are gone in C++20. (cherry picked from commit 5e3a1ea3d8)		2021-05-11 20:50:09 +01:00
..
pb_ds	libstdc++: Fix null dereference in pb_ds containers	2021-05-06 14:05:34 +01:00
algorithm
aligned_buffer.h
alloc_traits.h
atomicity.h
bitmap_allocator.h
cast.h
cmath
codecvt_specializations.h
concurrence.h
debug_allocator.h
enc_filebuf.h
extptr_allocator.h
functional
iterator
malloc_allocator.h	libstdc++: Fix missing members in std::allocator<void>	2021-05-11 20:50:09 +01:00
memory
mt_allocator.h
new_allocator.h	libstdc++: Fix missing members in std::allocator<void>	2021-05-11 20:50:09 +01:00
numeric
numeric_traits.h
pod_char_traits.h
pointer.h
pool_allocator.h
random
random.tcc
rb_tree
rc_string_base.h
rope
ropeimpl.h
slist
sso_string_base.h
stdio_filebuf.h
stdio_sync_filebuf.h
string_conversions.h
throw_allocator.h
type_traits.h
typelist.h
vstring_fwd.h
vstring_util.h
vstring.h
vstring.tcc