I want to clean up <ctype.h> now that API levels before 21 are no longer
supported, but -- although upstream libc++ is fine -- our old libc++
unconditionally defines inlines for these functions, which collide with
my attempt to do the same in bionic.
Rather than keep waiting for the new libc++, backport this trivial fix.
Test: treehugger
Change-Id: I579a16ee3c4877d5033a0e4166f49d76af3a093b
We don't use shared libraries on Windows anyway, so this shouldn't hurt
us, even if the bug in clang hasn't been fixed since the commit went in
two years ago.
Bug: http://b/124392080
Change-Id: Id562ac2bb64f1a384caa1553d2eeddd8371cf2ba
This patch aims to help clang with better information so it can inline
__bit_reference count function usage for both std::biset. Current clang
inliner can not infer that the passed typed will be used only to select
the optimized variant, it evaluates the type argument and type check as
a load plus compare (although later optimization phases correctly
optimized this out).
It is mainly to help llvm inliner to generate better code for std::bitset
count for aarch64. It helps on both runtime and code size, since if inline
decides that _VSTD::count should not be inlined the vectorization will
create both aligned and unaligned variants (which add both code size and
runtime costs)
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350936 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
P0602R4 makes the special member functions of optional and variant
conditionally trivial based on the types in the optional/variant.
We already implemented that, but the tests were organized as if this
were a non-standard extension. This patch reorganizes the tests in a
way that makes more sense since this is not an extension anymore.
Reviewers: EricWF, mpark, mclow.lists
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54772
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350884 91177308-0d34-0410-b5e6-96231b3b80d8
We already have a specialization that will use memcpy for construction
of trivial types from an iterator range like
std::vector<int>(int *, int *);
But if we have const-ness mismatch like
std::vector<int>(const int *, const int *);
we would use a slow path that copies each element individually. This change
enables the optimal specialization for const-ness mismatch. Fixes PR37574.
Contributions to the patch are made by Arthur O'Dwyer, Louis Dionne.
rdar://problem/40485845
Reviewers: mclow.lists, EricWF, ldionne, scanon
Reviewed By: ldionne
Subscribers: christof, ldionne, howard.hinnant, cfe-commits
Differential Revision: https://reviews.llvm.org/D48342
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350583 91177308-0d34-0410-b5e6-96231b3b80d8
This patch changes <experimental/foo> to use #warning instead of
is harmful to common feature detection idioms.
We should also consider only emitting the warning when __DEPRECATED is
defined, like we do in the <ext/foo> headers. Users may want to specify
"-Werror=-W#warnings" while still ignoring the libc++ warnings.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350485 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
We already have the negation of that as _LIBCPP_HAS_NONUNIQUE_TYPEINFO.
Having both defined is confusing, since only one of them is used.
Reviewers: EricWF, mclow.lists
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54537
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349947 91177308-0d34-0410-b5e6-96231b3b80d8
Makes libc++ behavior consistent between C++03 and C++11.
Can use `decltype` in C++03 because `include/__config` defines a macro when
`decltype` is not available.
Reviewers: mclow.lists, EricWF, erik.pilkington, ldionne
Reviewed By: ldionne
Subscribers: dexonsmith, cfe-commits, howard.hinnant, ldionne, christof, jkorous, Quuxplusone
Differential Revision: https://reviews.llvm.org/D48753
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349676 91177308-0d34-0410-b5e6-96231b3b80d8
I just realized I had always been reading this wrong because of the lack
of indentation, so I'm re-indenting this properly.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349408 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes a bug where functions would get exported when building with
-fvisibility=hidden and defining _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS. No
visibility annotations should be added in this case.
The new logic for _LIBCPP_EXPORTED_FROM_ABI matches that of the other visibility
annotations around it.
Differential Revision: https://reviews.llvm.org/D55664
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349080 91177308-0d34-0410-b5e6-96231b3b80d8
Also, add tests making sure that vector and deque both catch the problem
when assertions are enabled. Otherwise, deque would segfault and vector
would never terminate.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348994 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
std::tuple marks its constructors as noexcept when the corresponding
memberwise constructors are noexcept too -- this commit improves std::pair
so that it behaves the same.
This is a re-application of r348824, which broke the build in C++03 mode
because a test was marked as supported in C++03 when it shouldn't be.
Note:
I did not add support in the explicit and non-explicit `pair(_Tuple&& __p)`
constructors because those are non-standard extensions, and supporting them
properly is tedious (we have to copy the rvalue-referenceness of the deduced
_Tuple&& onto the result of tuple_element).
<rdar://problem/29537079>
Reviewers: mclow.lists, EricWF
Subscribers: christof, llvm-commits
Differential Revision: https://reviews.llvm.org/D48669
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348847 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
std::tuple marks its constructors as noexcept when the corresponding
memberwise constructors are noexcept too -- this commit improves std::pair
so that it behaves the same.
Note:
I did not add support in the explicit and non-explicit `pair(_Tuple&& __p)`
constructors because those are non-standard extensions, and supporting them
properly is tedious (we have to copy the rvalue-referenceness of the deduced
_Tuple&& onto the result of tuple_element).
<rdar://problem/29537079>
Reviewers: mclow.lists, EricWF
Subscribers: christof, llvm-commits
Differential Revision: https://reviews.llvm.org/D48669
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348824 91177308-0d34-0410-b5e6-96231b3b80d8
Patch from Jordan Soyke (jsoyke@google.com)
Reviewed as D55520
This change adds a new internal class, called __value_func, that adds
a minimal subset of value-type semantics to the internal __func interface.
The change is NFC, and is cleanup for the upcoming ABI v2 function implementation (D55045).
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348778 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
When providing a non-const-callable comparator in a map or set, the
warning diagnostic does not include the point of instantiation of
the container that triggered the warning, which makes it difficult
to track down the problem. This commit improves the diagnostic by
placing it directly in the body of the associative container.
The same change is applied to unordered associative containers, which
had a similar problem.
Finally, this commit cleans up the forward declarations of several
map and unordered_map helpers, which are not needed anymore.
<rdar://problem/41370747>
Reviewers: EricWF, mclow.lists
Subscribers: christof, dexonsmith, llvm-commits
Differential Revision: https://reviews.llvm.org/D48955
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348529 91177308-0d34-0410-b5e6-96231b3b80d8
Whether an explicit instantiation declaration should be provided is not
a matter of availability markup.
This problem is exemplified by the fact that some tests were incorrectly
marked as XFAIL when they should instead have been using the definition
of streams from the headers, and hence passing, and that, regardless of
whether visibility annotations are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348436 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This was voted into C++20 in San Diego. Note that there was a revision
D0318R2 which did include unwrap_reference_t, but we mistakingly voted
P0318R1 into the C++20 Working Draft (which does not include
unwrap_reference_t). This patch implements D0318R2, which is what
we'll end up with in the Working Draft once this mistake has been
fixed.
Reviewers: EricWF, mclow.lists
Subscribers: christof, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54485
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@348138 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
std::bad_array_length was added by n3467, but this never made it into C++.
This commit removes the definition of std::bad_array_length from the headers
AND from the shared library. See the comments in the ABI changelog for details
about the ABI implications of this change.
Reviewers: mclow.lists, dexonsmith, howard.hinnant, EricWF
Subscribers: christof, jkorous, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54804
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347903 91177308-0d34-0410-b5e6-96231b3b80d8
This reverts commit 087f065cb0.
The tests were failing on 32 bit builds, and I don't have time
to clean them up right now. I'll recommit tomorrow with fixed tests.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347816 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Starting in Clang 8.0 and GCC 8.0, `alignof` and `__alignof` return different values in same cases. Specifically `alignof` and `_Alignof` return the minimum alignment for a type, where as `__alignof` returns the preferred alignment. libc++ currently uses `__alignof` but means to use `alignof`. See llvm.org/PR39713
This patch introduces the macro `_LIBCPP_ALIGNOF` so we can control which spelling gets used.
This patch does not introduce any ABI guard to provide the old behavior with newer compilers. However, if we decide that is needed, this patch makes it trivial to implement.
I think we should commit this change immediately, and decide what we want to do about the ABI afterwards.
Reviewers: ldionne, EricWF
Reviewed By: EricWF
Subscribers: christof, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54814
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347787 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
std::dynarray had been proposed for C++14, but it was pulled out from C++14
and there are no plans to standardize it anymore.
Reviewers: mclow.lists, EricWF
Subscribers: mgorny, christof, jkorous, dexonsmith, arphaman, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54801
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347783 91177308-0d34-0410-b5e6-96231b3b80d8
This attribute should appear only on the first declaration. This
patch cleans up <string> by removing the attribute on redeclarations.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347608 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds an implementation of __resize_default_init as
described in P1072R2. Additionally, it uses it in filesystem to
demonstrate its intended utility.
Once P1072 lands, or if it changes it's interface, I will adjust
the internal libc++ implementation to match.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347589 91177308-0d34-0410-b5e6-96231b3b80d8
We don't support mac OS 10.6 and older anymore, so this macro can never
be defined. This bit of code had been added in D28931 as a fix for
PR31448, but it doesn't seem necessary anymore.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347427 91177308-0d34-0410-b5e6-96231b3b80d8
