Swiftdiff options
| author | Tobias Markmann <tm@ayena.de> | 2014-10-19 20:22:58 (GMT) |
|---|---|---|
| committer | Tobias Markmann <tm@ayena.de> | 2014-10-20 13:49:33 (GMT) |
| commit | 6b22dfcf59474dd016a0355a3102a1dd3692d92c (patch) | |
| tree | 2b1fd33be433a91e81fee84fdc2bf1b52575d934 /3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp | |
| parent | 38b0cb785fea8eae5e48fae56440695fdfd10ee1 (diff) | |
| download | swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.zip swift-6b22dfcf59474dd016a0355a3102a1dd3692d92c.tar.bz2 | |
Update Boost in 3rdParty to version 1.56.0.
This updates Boost in our 3rdParty directory to version 1.56.0.
Updated our update.sh script to stop on error.
Changed error reporting in SwiftTools/CrashReporter.cpp to SWIFT_LOG due to
missing include of <iostream> with newer Boost.
Change-Id: I4b35c77de951333979a524097f35f5f83d325edc
Diffstat (limited to '3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp b/3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp new file mode 100644 index 0000000..cf9f379 --- /dev/null +++ b/3rdParty/Boost/src/boost/intrusive/detail/parent_from_member.hpp @@ -0,0 +1,117 @@ +///////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2007-2013 +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/intrusive for documentation. +// +///////////////////////////////////////////////////////////////////////////// +#ifndef BOOST_INTRUSIVE_DETAIL_PARENT_FROM_MEMBER_HPP +#define BOOST_INTRUSIVE_DETAIL_PARENT_FROM_MEMBER_HPP + +#include <boost/intrusive/detail/config_begin.hpp> +#include <cstddef> + +#if defined(BOOST_MSVC) || ((defined(_WIN32) || defined(__WIN32__) || defined(WIN32)) && defined(BOOST_INTEL)) + #define BOOST_INTRUSIVE_MSVC_ABI_PTR_TO_MEMBER + #include <boost/cstdint.hpp> + #include <boost/static_assert.hpp> +#endif + +namespace boost { +namespace intrusive { +namespace detail { + +template<class Parent, class Member> +inline std::ptrdiff_t offset_from_pointer_to_member(const Member Parent::* ptr_to_member) +{ + //The implementation of a pointer to member is compiler dependent. + #if defined(BOOST_INTRUSIVE_MSVC_ABI_PTR_TO_MEMBER) + + //MSVC compliant compilers use their the first 32 bits as offset (even in 64 bit mode) + union caster_union + { + const Member Parent::* ptr_to_member; + boost::int32_t offset; + } caster; + + //MSVC ABI can use up to 3 int32 to represent pointer to member data + //with virtual base classes, in those cases there is no simple to + //obtain the address of the parent. So static assert to avoid runtime errors + BOOST_STATIC_ASSERT( sizeof(caster) == sizeof(boost::int32_t) ); + + caster.ptr_to_member = ptr_to_member; + return std::ptrdiff_t(caster.offset); + //Additional info on MSVC behaviour for the future. For 2/3 int ptr-to-member + //types dereference seems to be: + // + // vboffset = [compile_time_offset if 2-int ptr2memb] / + // [ptr2memb.i32[2] if 3-int ptr2memb]. + // vbtable = *(this + vboffset); + // adj = vbtable[ptr2memb.i32[1]]; + // var = adj + (this + vboffset) + ptr2memb.i32[0]; + // + //To reverse the operation we need to + // - obtain vboffset (in 2-int ptr2memb implementation only) + // - Go to Parent's vbtable and obtain adjustment at index ptr2memb.i32[1] + // - parent = member - adj - vboffset - ptr2memb.i32[0] + // + //Even accessing to RTTI we might not be able to obtain this information + //so anyone who thinks it's possible, please send a patch. + + //This works with gcc, msvc, ac++, ibmcpp + #elif defined(__GNUC__) || defined(__HP_aCC) || defined(BOOST_INTEL) || \ + defined(__IBMCPP__) || defined(__DECCXX) + const Parent * const parent = 0; + const char *const member = static_cast<const char*>(static_cast<const void*>(&(parent->*ptr_to_member))); + return std::ptrdiff_t(member - static_cast<const char*>(static_cast<const void*>(parent))); + #else + //This is the traditional C-front approach: __MWERKS__, __DMC__, __SUNPRO_CC + union caster_union + { + const Member Parent::* ptr_to_member; + std::ptrdiff_t offset; + } caster; + caster.ptr_to_member = ptr_to_member; + return caster.offset - 1; + #endif +} + +template<class Parent, class Member> +inline Parent *parent_from_member(Member *member, const Member Parent::* ptr_to_member) +{ + return static_cast<Parent*> + ( + static_cast<void*> + ( + static_cast<char*>(static_cast<void*>(member)) - offset_from_pointer_to_member(ptr_to_member) + ) + ); +} + +template<class Parent, class Member> +inline const Parent *parent_from_member(const Member *member, const Member Parent::* ptr_to_member) +{ + return static_cast<const Parent*> + ( + static_cast<const void*> + ( + static_cast<const char*>(static_cast<const void*>(member)) - offset_from_pointer_to_member(ptr_to_member) + ) + ); +} + +} //namespace detail { +} //namespace intrusive { +} //namespace boost { + +#ifdef BOOST_INTRUSIVE_MSVC_ABI_PTR_TO_MEMBER +#undef BOOST_INTRUSIVE_MSVC_ABI_PTR_TO_MEMBER +#endif + +#include <boost/intrusive/detail/config_end.hpp> + +#endif //#ifndef BOOST_INTRUSIVE_DETAIL_PARENT_FROM_MEMBER_HPP |