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  1. Jul 30, 2011
    • Alexis Hunt's avatar
      Explicitly invoke the size_type specialization of max and min. This · 83243781
      Alexis Hunt authored 
      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.

llvm-svn: 136540
      83243781
    • Alexis Hunt's avatar
      Add a new hash class in __gnu_ext for the extension containers. There · 8d2ed566
      Alexis Hunt authored 
      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.

llvm-svn: 136539
      8d2ed566
    • Alexis Hunt's avatar
      Add two missing members from the extension hash containers. The first is · fe473ae2
      Alexis Hunt authored 
      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.

llvm-svn: 136538
      fe473ae2
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  35. Jun 23, 2011
    • Douglas Gregor's avatar
      Teach libc++ about the addressof() overloads it needs to work with · 64ec101e
      Douglas Gregor authored 
      Objective-C Automatic Reference Counting, where Objective-C object
pointers can have several different qualifiers (__strong, __weak,
__autoreleasing, __unsafe_unretained). These addressof() overloads are
only provided in ARC mode, and the __weak variant is conditionalized
on having weak-reference support in the ARC runtime.

For historical reasons, Clang provides these definitions itself, and
defines the macro _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF to note when
it as done so. The code belongs here, and this redundancy will be
eliminated in the future.

Addresses <rdar://problem/9658274>.

llvm-svn: 133656
      64ec101e
  37. Jun 19, 2011
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