This was checked in without review. It is not clear its reasonable to
include with libc++ at all, and needs discussion at a highlevel before
moving forward.
It's also completely lacking tests, and included several bugs in the
implementation.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@136577 91177308-0d34-0410-b5e6-96231b3b80d8
Original change:
Destruct elements of hash tables when removing individual entries from
the hash_table. I think this is the correct solution to PR10507, but I'm
not sure since this is a little bit cargo-culted. Howard, please review.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@136576 91177308-0d34-0410-b5e6-96231b3b80d8
the hash_table. I think this is the correct solution to PR10507, but I'm
not sure since this is a little bit cargo-culted. Howard, please review.
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together to get it working with code, and is neither optimal
(erase(Iterator, Iterator) calculates the previous iterator twice,
rather than calculating the previous iterator of the first one, then
advancing it until the second is found) nor complete (splice() was not
implemented). Most of the implementation is borrowed from forward_list
via using-declarations.
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avoids bugs where, when the allocator's size_type was smaller than int,
the multiplication or division would cause integral promotions and, with
two different integer types as arguments, deduction of the template
arguments would fail.
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are two motivations for this.
First, this allows users who are specializing __gnu_ext::hash to
continue doing so without changing their code.
Second, SGI specifies hash overloads for char* and const char* that
perform a hash of the string, not of the pointer.
In order to support this, the hashing code for string is factored out.
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the type name 'data_type', which is specified by the SGI spec as being
the correct type name for the mapped type. The second is an overload of
insert found in standard containers, taking an iterator as a 'hint'
(which we ignore in the standard containers as well). libstdc++'s
implementation includes these overloads, and they are needed to make
insert_iterator work (which I suspect is the real motivation for
including them in the standard containers).
The motivation for including these overloads of insert and leaving the
mapped_type typedef is to make it easier for clients to migrate to the
standard containers.
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all platforms. Unfortunately a lot of this remains conditionally
compiled so as not to break Apple's ABI.
The new _LIBCPP_LOCALE__L_EXTENSIONS macro can be defined on other
platforms that support _l suffixes for all functions in order to use
them.
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traits.
To the best of my knowledge, this will not break the ABI for Apple.
However, it does introduce three publicly visible (although with
reserved name) functions that will fail to link against the just-shipped
Apple version of libc++. Since they are not used in any inline
functions, no actual breakage should occur.
If Howard doesn't want to put undefined functions (even internal ones)
into a header, they could be surrounded by additional conditional
compilation.
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