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17b66b68c3d4fa66ca57504aeccc8da7c3cfc405
freebsd/contrib/libc++/include/__functional_03
T
Dimitry Andric e8948c9522 Merge clang, llvm, lld, lldb, compiler-rt and libc++ 5.0.0 release. 
MFC r309126 (by emaste):

  Correct lld llvm-tblgen dependency file name

MFC r309169:

  Get rid of separate Subversion mergeinfo properties for llvm-dwarfdump
  and llvm-lto.  The mergeinfo confuses Subversion enormously, and these
  directories will just use the mergeinfo for llvm itself.

MFC r312765:

  Pull in r276136 from upstream llvm trunk (by Wei Mi):

    Use ValueOffsetPair to enhance value reuse during SCEV expansion.

    In D12090, the ExprValueMap was added to reuse existing value during
    SCEV expansion. However, const folding and sext/zext distribution can
    make the reuse still difficult.

    A simplified case is: suppose we know S1 expands to V1 in
    ExprValueMap, and
      S1 = S2 + C_a
      S3 = S2 + C_b
    where C_a and C_b are different SCEVConstants. Then we'd like to
    expand S3 as V1 - C_a + C_b instead of expanding S2 literally. It is
    helpful when S2 is a complex SCEV expr and S2 has no entry in
    ExprValueMap, which is usually caused by the fact that S3 is
    generated from S1 after const folding.

    In order to do that, we represent ExprValueMap as a mapping from SCEV
    to ValueOffsetPair. We will save both S1->{V1, 0} and S2->{V1, C_a}
    into the ExprValueMap when we create SCEV for V1. When S3 is
    expanded, it will first expand S2 to V1 - C_a because of S2->{V1,
    C_a} in the map, then expand S3 to V1 - C_a + C_b.

    Differential Revision: https://reviews.llvm.org/D21313

  This should fix assertion failures when building OpenCV >= 3.1.

  PR:		215649

MFC r312831:

  Revert r312765 for now, since it causes assertions when building
  lang/spidermonkey24.

  Reported by:	antoine
  PR:		215649

MFC r316511 (by jhb):

  Add an implementation of __ffssi2() derived from __ffsdi2().

  Newer versions of GCC include an __ffssi2() symbol in libgcc and the
  compiler can emit calls to it in generated code.  This is true for at
  least GCC 6.2 when compiling world for mips and mips64.

  Reviewed by:	jmallett, dim
  Sponsored by:	DARPA / AFRL
  Differential Revision:	https://reviews.freebsd.org/D10086

MFC r318601 (by adrian):

  [libcompiler-rt] add bswapdi2/bswapsi2

  This is required for mips gcc 6.3 userland to build/run.

  Reviewed by:	emaste, dim
  Approved by:	emaste
  Differential Revision:	https://reviews.freebsd.org/D10838

MFC r318884 (by emaste):

  lldb: map TRAP_CAP to a trace trap

  In the absense of a more specific handler for TRAP_CAP (generated by
  ENOTCAPABLE or ECAPMODE while in capability mode) treat it as a trace
  trap.

  Example usage (testing the bug in PR219173):

  % proccontrol -m trapcap lldb usr.bin/hexdump/obj/hexdump -- -Cv -s 1 /bin/ls
  ...
  (lldb) run
  Process 12980 launching
  Process 12980 launched: '.../usr.bin/hexdump/obj/hexdump' (x86_64)
  Process 12980 stopped
  * thread #1, stop reason = trace
      frame #0: 0x0000004b80c65f1a libc.so.7`__sys_lseek + 10
  ...

  In the future we should have LLDB control the trapcap procctl itself
  (as it does with ASLR), as well as report a specific stop reason.
  This change eliminates an assertion failure from LLDB for now.

MFC r319796:

  Remove a few unneeded files from libllvm, libclang and liblldb.

MFC r319885 (by emaste):

  lld: ELF: Fix ICF crash on absolute symbol relocations.

  If two sections contained relocations to absolute symbols with the same
  value we would crash when trying to access their sections. Add a check that
  both symbols point to sections before accessing their sections, and treat
  absolute symbols as equal if their values are equal.

  Obtained from:	LLD commit r292578

MFC r319918:

  Revert r319796 for now, it can cause undefined references when linking
  in some circumstances.

  Reported by:	Shawn Webb <[email protected]>

MFC r319957 (by emaste):

  lld: Add armelf emulation mode

  Obtained from:	LLD r305375

MFC r321369:

  Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
  5.0.0 (trunk r308421).  Upstream has branched for the 5.0.0 release,
  which should be in about a month.  Please report bugs and regressions,
  so we can get them into the release.

  Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
  support to build; see UPDATING for more information.

MFC r321420:

  Add a few more object files to liblldb, which should solve errors when
  linking the lldb executable in some cases.  In particular, when the
  -ffunction-sections -fdata-sections options are turned off, or
  ineffective.

  Reported by:	Shawn Webb, Mark Millard

MFC r321433:

  Cleanup stale Options.inc files from the previous libllvm build for
  clang 4.0.0.  Otherwise, these can get included before the two newly
  generated ones (which are different) for clang 5.0.0.

  Reported by:	Mark Millard

MFC r321439 (by bdrewery):

  Move llvm Options.inc hack from r321433 for NO_CLEAN to lib/clang/libllvm.

  The files are only ever generated to .OBJDIR, not to WORLDTMP (as a
  sysroot) and are only ever included from a compilation.  So using
  a beforebuild target here removes the file before the compilation
  tries to include it.

MFC r321664:

  Pull in r308891 from upstream llvm trunk (by Benjamin Kramer):

    [CodeGenPrepare] Cut off FindAllMemoryUses if there are too many uses.

    This avoids excessive compile time. The case I'm looking at is
    Function.cpp from an old version of LLVM that still had the giant
    memcmp string matcher in it. Before r308322 this compiled in about 2
    minutes, after it, clang takes infinite* time to compile it. With
    this patch we're at 5 min, which is still bad but this is a
    pathological case.

    The cut off at 20 uses was chosen by looking at other cut-offs in LLVM
    for user scanning. It's probably too high, but does the job and is
    very unlikely to regress anything.

    Fixes PR33900.

    * I'm impatient and aborted after 15 minutes, on the bug report it was
      killed after 2h.

  Pull in r308986 from upstream llvm trunk (by Simon Pilgrim):

    [X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914)

    D35067/rL308322 attempted to support up to 4 load pairs for memcmp
    inlining which resulted in regressions for some optimized libc memcmp
    implementations (PR33914).

    Until we can match these more optimal cases, this patch reduces the
    memcmp expansion to a maximum of 2 load pairs (which matches what we
    do for -Os).

    This patch should be considered for the 5.0.0 release branch as well

    Differential Revision: https://reviews.llvm.org/D35830

  These fix a hang (or extremely long compile time) when building older
  LLVM ports.

  Reported by:    antoine
  PR:             219139

MFC r321719:

  Pull in r309503 from upstream clang trunk (by Richard Smith):

    PR33902: Invalidate line number cache when adding more text to
    existing buffer.

    This led to crashes as the line number cache would report a bogus
    line number for a line of code, and we'd try to find a nonexistent
    column within the line when printing diagnostics.

  This fixes an assertion when building the graphics/champlain port.

  Reported by:	antoine, kwm
  PR:		219139

MFC r321723:

  Upgrade our copies of clang, llvm, lld and lldb to r309439 from the
  upstream release_50 branch.  This is just after upstream's 5.0.0-rc1.

MFC r322320:

  Upgrade our copies of clang, llvm and libc++ to r310316 from the
  upstream release_50 branch.

MFC r322326 (by emaste):

  lldb: Make i386-*-freebsd expression work on JIT path

  * Enable i386 ABI creation for freebsd
  * Added an extra argument in ABISysV_i386::PrepareTrivialCall for mmap
    syscall
  * Unlike linux, the last argument of mmap is actually 64-bit(off_t).
    This requires us to push an additional word for the higher order bits.
  * Prior to this change, ktrace dump will show mmap failures due to
    invalid argument coming from the 6th mmap argument.

  Submitted by:	Karnajit Wangkhem
  Differential Revision:	https://reviews.llvm.org/D34776

MFC r322360 (by emaste):

  lldb: Report inferior signals as signals, not exceptions, on FreeBSD

  This is the FreeBSD equivalent of LLVM r238549.

  This serves 2 purposes:

  * LLDB should handle inferior process signals SIGSEGV/SIGILL/SIGBUS/
    SIGFPE the way it is suppose to be handled. Prior to this fix these
    signals will neither create a coredump, nor exit from the debugger
    or work for signal handling scenario.
  * eInvalidCrashReason need not report "unknown crash reason" if we have
    a valid si_signo

  llvm.org/pr23699

  Patch by Karnajit Wangkhem

  Differential Revision:  https://reviews.llvm.org/D35223

  Submitted by:	Karnajit Wangkhem
  Obtained from:	LLVM r310591

MFC r322474 (by emaste):

  lld: Add `-z muldefs` option.

  Obtained from:	LLVM r310757

MFC r322740:

  Upgrade our copies of clang, llvm, lld and libc++ to r311219 from the
  upstream release_50 branch.

MFC r322855:

  Upgrade our copies of clang, llvm, lldb and compiler-rt to r311606 from
  the upstream release_50 branch.

  As of this version, lib/msun's trig test should also work correctly
  again (see bug 220989 for more information).

  PR:		220989

MFC r323112:

  Upgrade our copies of clang, llvm, lldb and compiler-rt to r312293 from
  the upstream release_50 branch.  This corresponds to 5.0.0 rc4.

  As of this version, the cad/stepcode port should now compile in a more
  reasonable time on i386 (see bug 221836 for more information).

  PR:		221836

MFC r323245:

  Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
  5.0.0 release (upstream r312559).

  Release notes for llvm, clang and lld will be available here soon:
  <http://releases.llvm.org/5.0.0/docs/ReleaseNotes.html>
  <http://releases.llvm.org/5.0.0/tools/clang/docs/ReleaseNotes.html>
  <http://releases.llvm.org/5.0.0/tools/lld/docs/ReleaseNotes.html>

  Relnotes:	yes
2017-09-26 19:56:36 +00:00

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_FUNCTIONAL_03
#define _LIBCPP_FUNCTIONAL_03
// manual variadic expansion for <functional>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
namespace __function {
template<class _Fp> class __base;
template<class _Rp>
class __base<_Rp()>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()() = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0>
class __base<_Rp(_A0)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1>
class __base<_Rp(_A0, _A1)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0, _A1) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1, class _A2>
class __base<_Rp(_A0, _A1, _A2)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0, _A1, _A2) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _FD, class _Alloc, class _FB> class __func;
template<class _Fp, class _Alloc, class _Rp>
class __func<_Fp, _Alloc, _Rp()>
: public __base<_Rp()>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
explicit __func(_Fp __f, _Alloc __a) : __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp()>* __clone() const;
virtual void __clone(__base<_Rp()>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()();
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp>
__base<_Rp()>*
__func<_Fp, _Alloc, _Rp()>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::__clone(__base<_Rp()>* __p) const
{
::new (__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp>
_Rp
__func<_Fp, _Alloc, _Rp()>::operator()()
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first());
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp>
const void*
__func<_Fp, _Alloc, _Rp()>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp>
const std::type_info&
__func<_Fp, _Alloc, _Rp()>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0>
class __func<_Fp, _Alloc, _Rp(_A0)>
: public __base<_Rp(_A0)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0)>* __clone() const;
virtual void __clone(__base<_Rp(_A0)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0>
__base<_Rp(_A0)>*
__func<_Fp, _Alloc, _Rp(_A0)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::__clone(__base<_Rp(_A0)>* __p) const
{
::new (__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
_Rp
__func<_Fp, _Alloc, _Rp(_A0)>::operator()(_A0 __a0)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0>
const void*
__func<_Fp, _Alloc, _Rp(_A0)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
class __func<_Fp, _Alloc, _Rp(_A0, _A1)>
: public __base<_Rp(_A0, _A1)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0, _A1)>* __clone() const;
virtual void __clone(__base<_Rp(_A0, _A1)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0, _A1);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
__base<_Rp(_A0, _A1)>*
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone(__base<_Rp(_A0, _A1)>* __p) const
{
::new (__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
_Rp
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0, __a1);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
const void*
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
class __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>
: public __base<_Rp(_A0, _A1, _A2)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0, _A1, _A2)>* __clone() const;
virtual void __clone(__base<_Rp(_A0, _A1, _A2)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0, _A1, _A2);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
__base<_Rp(_A0, _A1, _A2)>*
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone(__base<_Rp(_A0, _A1, _A2)>* __p) const
{
::new (__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
_Rp
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0, __a1, __a2);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
const void*
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
} // __function
template<class _Rp>
class _LIBCPP_TEMPLATE_VIS function<_Rp()>
{
typedef __function::__base<_Rp()> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2>
bool operator==(const function<_R2()>&) const;// = delete;
template<class _R2>
bool operator!=(const function<_R2()>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()() const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp>
function<_Rp()>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp>
template<class _Alloc>
function<_Rp()>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp>
template <class _Fp>
function<_Rp()>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp()> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f);
}
else
{
typedef allocator<_FF> _Ap;
_Ap __a;
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, allocator<_Fp>(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp>
template <class _Fp, class _Alloc>
function<_Rp()>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
typedef allocator_traits<_Alloc> __alloc_traits;
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, _Alloc, _Rp()> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f, __a0);
}
else
{
typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
_Ap __a(__a0);
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, _Alloc(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp>
function<_Rp()>&
function<_Rp()>::operator=(const function& __f)
{
function(__f).swap(*this);
return *this;
}
template<class _Rp>
function<_Rp()>&
function<_Rp()>::operator=(nullptr_t)
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
__f_ = 0;
return *this;
}
template<class _Rp>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp()>&
>::type
function<_Rp()>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp>
function<_Rp()>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp>
void
function<_Rp()>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp>
_Rp
function<_Rp()>::operator()() const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)();
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp>
const std::type_info&
function<_Rp()>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp>
template <typename _Tp>
_Tp*
function<_Rp()>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp>
template <typename _Tp>
const _Tp*
function<_Rp()>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0)>
: public unary_function<_A0, _Rp>
{
typedef __function::__base<_Rp(_A0)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0>
bool operator==(const function<_R2(_B0)>&) const;// = delete;
template<class _R2, class _B0>
bool operator!=(const function<_R2(_B0)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0>
function<_Rp(_A0)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0>
template<class _Alloc>
function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0>
template <class _Fp>
function<_Rp(_A0)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f);
}
else
{
typedef allocator<_FF> _Ap;
_Ap __a;
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, allocator<_Fp>(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0>
template <class _Fp, class _Alloc>
function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
typedef allocator_traits<_Alloc> __alloc_traits;
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, _Alloc, _Rp(_A0)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f, __a0);
}
else
{
typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
_Ap __a(__a0);
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, _Alloc(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0>
function<_Rp(_A0)>&
function<_Rp(_A0)>::operator=(const function& __f)
{
function(__f).swap(*this);
return *this;
}
template<class _Rp, class _A0>
function<_Rp(_A0)>&
function<_Rp(_A0)>::operator=(nullptr_t)
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
__f_ = 0;
return *this;
}
template<class _Rp, class _A0>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0)>&
>::type
function<_Rp(_A0)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0>
function<_Rp(_A0)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0>
void
function<_Rp(_A0)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0>
_Rp
function<_Rp(_A0)>::operator()(_A0 __a0) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0>
const std::type_info&
function<_Rp(_A0)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0>
template <typename _Tp>
_Tp*
function<_Rp(_A0)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0>
template <typename _Tp>
const _Tp*
function<_Rp(_A0)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1)>
: public binary_function<_A0, _A1, _Rp>
{
typedef __function::__base<_Rp(_A0, _A1)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0, class _B1>
bool operator==(const function<_R2(_B0, _B1)>&) const;// = delete;
template<class _R2, class _B0, class _B1>
bool operator!=(const function<_R2(_B0, _B1)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0, _A1) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1>
template<class _Alloc>
function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1>
template <class _Fp>
function<_Rp(_A0, _A1)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f);
}
else
{
typedef allocator<_FF> _Ap;
_Ap __a;
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, allocator<_Fp>(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0, class _A1>
template <class _Fp, class _Alloc>
function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
typedef allocator_traits<_Alloc> __alloc_traits;
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, _Alloc, _Rp(_A0, _A1)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f, __a0);
}
else
{
typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
_Ap __a(__a0);
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, _Alloc(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>&
function<_Rp(_A0, _A1)>::operator=(const function& __f)
{
function(__f).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>&
function<_Rp(_A0, _A1)>::operator=(nullptr_t)
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
__f_ = 0;
return *this;
}
template<class _Rp, class _A0, class _A1>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0, _A1)>&
>::type
function<_Rp(_A0, _A1)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0, class _A1>
void
function<_Rp(_A0, _A1)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0, class _A1>
_Rp
function<_Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0, __a1);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1>
const std::type_info&
function<_Rp(_A0, _A1)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0, class _A1>
template <typename _Tp>
_Tp*
function<_Rp(_A0, _A1)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0, class _A1>
template <typename _Tp>
const _Tp*
function<_Rp(_A0, _A1)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1, class _A2>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1, _A2)>
{
typedef __function::__base<_Rp(_A0, _A1, _A2)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0, class _B1, class _B2>
bool operator==(const function<_R2(_B0, _B1, _B2)>&) const;// = delete;
template<class _R2, class _B0, class _B1, class _B2>
bool operator!=(const function<_R2(_B0, _B1, _B2)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0, _A1, _A2) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1, class _A2>
template<class _Alloc>
function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc&,
const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1, class _A2>
template <class _Fp>
function<_Rp(_A0, _A1, _A2)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1, _A2)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f);
}
else
{
typedef allocator<_FF> _Ap;
_Ap __a;
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, allocator<_Fp>(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0, class _A1, class _A2>
template <class _Fp, class _Alloc>
function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
typedef allocator_traits<_Alloc> __alloc_traits;
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new (__f_) _FF(__f, __a0);
}
else
{
typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
_Ap __a(__a0);
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new (__hold.get()) _FF(__f, _Alloc(__a));
__f_ = __hold.release();
}
}
}
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>&
function<_Rp(_A0, _A1, _A2)>::operator=(const function& __f)
{
function(__f).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>&
function<_Rp(_A0, _A1, _A2)>::operator=(nullptr_t)
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
__f_ = 0;
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0, _A1, _A2)>&
>::type
function<_Rp(_A0, _A1, _A2)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0, class _A1, class _A2>
void
function<_Rp(_A0, _A1, _A2)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0, class _A1, class _A2>
_Rp
function<_Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0, __a1, __a2);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1, class _A2>
const std::type_info&
function<_Rp(_A0, _A1, _A2)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0, class _A1, class _A2>
template <typename _Tp>
_Tp*
function<_Rp(_A0, _A1, _A2)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0, class _A1, class _A2>
template <typename _Tp>
const _Tp*
function<_Rp(_A0, _A1, _A2)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const function<_Fp>& __f, nullptr_t) {return !__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(nullptr_t, const function<_Fp>& __f) {return !__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const function<_Fp>& __f, nullptr_t) {return (bool)__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(nullptr_t, const function<_Fp>& __f) {return (bool)__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(function<_Fp>& __x, function<_Fp>& __y)
{return __x.swap(__y);}
#endif // _LIBCPP_FUNCTIONAL_03
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