Added boost header
This commit is contained in:
Christophe Riccio
452
test/external/boost/multi_index/detail/scope_guard.hpp
vendored
Normal file
452
test/external/boost/multi_index/detail/scope_guard.hpp
vendored
Normal file
@@ -0,0 +1,452 @@
|
||||
/* Copyright 2003-2011 Joaquin M Lopez Munoz.
|
||||
* 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/multi_index for library home page.
|
||||
*/
|
||||
|
||||
#ifndef BOOST_MULTI_INDEX_DETAIL_SCOPE_GUARD_HPP
|
||||
#define BOOST_MULTI_INDEX_DETAIL_SCOPE_GUARD_HPP
|
||||
|
||||
#if defined(_MSC_VER)&&(_MSC_VER>=1200)
|
||||
#pragma once
|
||||
#endif
|
||||
|
||||
#include <boost/detail/no_exceptions_support.hpp>
|
||||
|
||||
namespace boost{
|
||||
|
||||
namespace multi_index{
|
||||
|
||||
namespace detail{
|
||||
|
||||
/* Until some official version of the ScopeGuard idiom makes it into Boost,
|
||||
* we locally define our own. This is a merely reformated version of
|
||||
* ScopeGuard.h as defined in:
|
||||
* Alexandrescu, A., Marginean, P.:"Generic<Programming>: Change the Way You
|
||||
* Write Exception-Safe Code - Forever", C/C++ Users Jornal, Dec 2000,
|
||||
* http://www.drdobbs.com/184403758
|
||||
* with the following modifications:
|
||||
* - General pretty formatting (pretty to my taste at least.)
|
||||
* - Naming style changed to standard C++ library requirements.
|
||||
* - Added scope_guard_impl4 and obj_scope_guard_impl3, (Boost.MultiIndex
|
||||
* needs them). A better design would provide guards for many more
|
||||
* arguments through the Boost Preprocessor Library.
|
||||
* - Added scope_guard_impl_base::touch (see below.)
|
||||
* - Removed RefHolder and ByRef, whose functionality is provided
|
||||
* already by Boost.Ref.
|
||||
* - Removed static make_guard's and make_obj_guard's, so that the code
|
||||
* will work even if BOOST_NO_MEMBER_TEMPLATES is defined. This forces
|
||||
* us to move some private ctors to public, though.
|
||||
*
|
||||
* NB: CodeWarrior Pro 8 seems to have problems looking up safe_execute
|
||||
* without an explicit qualification.
|
||||
*
|
||||
* We also define the following variants of the idiom:
|
||||
*
|
||||
* - make_guard_if_c<bool>( ... )
|
||||
* - make_guard_if<IntegralConstant>( ... )
|
||||
* - make_obj_guard_if_c<bool>( ... )
|
||||
* - make_obj_guard_if<IntegralConstant>( ... )
|
||||
* which may be used with a compile-time constant to yield
|
||||
* a "null_guard" if the boolean compile-time parameter is false,
|
||||
* or conversely, the guard is only constructed if the constant is true.
|
||||
* This is useful to avoid extra tagging, because the returned
|
||||
* null_guard can be optimzed comlpetely away by the compiler.
|
||||
*/
|
||||
|
||||
class scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl_base():dismissed_(false){}
|
||||
void dismiss()const{dismissed_=true;}
|
||||
|
||||
/* This helps prevent some "unused variable" warnings under, for instance,
|
||||
* GCC 3.2.
|
||||
*/
|
||||
void touch()const{}
|
||||
|
||||
protected:
|
||||
~scope_guard_impl_base(){}
|
||||
|
||||
scope_guard_impl_base(const scope_guard_impl_base& other):
|
||||
dismissed_(other.dismissed_)
|
||||
{
|
||||
other.dismiss();
|
||||
}
|
||||
|
||||
template<typename J>
|
||||
static void safe_execute(J& j){
|
||||
BOOST_TRY{
|
||||
if(!j.dismissed_)j.execute();
|
||||
}
|
||||
BOOST_CATCH(...){}
|
||||
BOOST_CATCH_END
|
||||
}
|
||||
|
||||
mutable bool dismissed_;
|
||||
|
||||
private:
|
||||
scope_guard_impl_base& operator=(const scope_guard_impl_base&);
|
||||
};
|
||||
|
||||
typedef const scope_guard_impl_base& scope_guard;
|
||||
|
||||
struct null_guard : public scope_guard_impl_base
|
||||
{
|
||||
template< class T1 >
|
||||
null_guard( const T1& )
|
||||
{ }
|
||||
|
||||
template< class T1, class T2 >
|
||||
null_guard( const T1&, const T2& )
|
||||
{ }
|
||||
|
||||
template< class T1, class T2, class T3 >
|
||||
null_guard( const T1&, const T2&, const T3& )
|
||||
{ }
|
||||
|
||||
template< class T1, class T2, class T3, class T4 >
|
||||
null_guard( const T1&, const T2&, const T3&, const T4& )
|
||||
{ }
|
||||
|
||||
template< class T1, class T2, class T3, class T4, class T5 >
|
||||
null_guard( const T1&, const T2&, const T3&, const T4&, const T5& )
|
||||
{ }
|
||||
};
|
||||
|
||||
template< bool cond, class T >
|
||||
struct null_guard_return
|
||||
{
|
||||
typedef typename boost::mpl::if_c<cond,T,null_guard>::type type;
|
||||
};
|
||||
|
||||
template<typename F>
|
||||
class scope_guard_impl0:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl0(F fun):fun_(fun){}
|
||||
~scope_guard_impl0(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){fun_();}
|
||||
|
||||
protected:
|
||||
|
||||
F fun_;
|
||||
};
|
||||
|
||||
template<typename F>
|
||||
inline scope_guard_impl0<F> make_guard(F fun)
|
||||
{
|
||||
return scope_guard_impl0<F>(fun);
|
||||
}
|
||||
|
||||
template<bool cond, typename F>
|
||||
inline typename null_guard_return<cond,scope_guard_impl0<F> >::type
|
||||
make_guard_if_c(F fun)
|
||||
{
|
||||
return typename null_guard_return<cond,scope_guard_impl0<F> >::type(fun);
|
||||
}
|
||||
|
||||
template<typename C, typename F>
|
||||
inline typename null_guard_return<C::value,scope_guard_impl0<F> >::type
|
||||
make_guard_if(F fun)
|
||||
{
|
||||
return make_guard_if<C::value>(fun);
|
||||
}
|
||||
|
||||
template<typename F,typename P1>
|
||||
class scope_guard_impl1:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl1(F fun,P1 p1):fun_(fun),p1_(p1){}
|
||||
~scope_guard_impl1(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){fun_(p1_);}
|
||||
|
||||
protected:
|
||||
F fun_;
|
||||
const P1 p1_;
|
||||
};
|
||||
|
||||
template<typename F,typename P1>
|
||||
inline scope_guard_impl1<F,P1> make_guard(F fun,P1 p1)
|
||||
{
|
||||
return scope_guard_impl1<F,P1>(fun,p1);
|
||||
}
|
||||
|
||||
template<bool cond, typename F,typename P1>
|
||||
inline typename null_guard_return<cond,scope_guard_impl1<F,P1> >::type
|
||||
make_guard_if_c(F fun,P1 p1)
|
||||
{
|
||||
return typename null_guard_return<cond,scope_guard_impl1<F,P1> >::type(fun,p1);
|
||||
}
|
||||
|
||||
template<typename C, typename F,typename P1>
|
||||
inline typename null_guard_return<C::value,scope_guard_impl1<F,P1> >::type
|
||||
make_guard_if(F fun,P1 p1)
|
||||
{
|
||||
return make_guard_if_c<C::value>(fun,p1);
|
||||
}
|
||||
|
||||
template<typename F,typename P1,typename P2>
|
||||
class scope_guard_impl2:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl2(F fun,P1 p1,P2 p2):fun_(fun),p1_(p1),p2_(p2){}
|
||||
~scope_guard_impl2(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){fun_(p1_,p2_);}
|
||||
|
||||
protected:
|
||||
F fun_;
|
||||
const P1 p1_;
|
||||
const P2 p2_;
|
||||
};
|
||||
|
||||
template<typename F,typename P1,typename P2>
|
||||
inline scope_guard_impl2<F,P1,P2> make_guard(F fun,P1 p1,P2 p2)
|
||||
{
|
||||
return scope_guard_impl2<F,P1,P2>(fun,p1,p2);
|
||||
}
|
||||
|
||||
template<bool cond, typename F,typename P1,typename P2>
|
||||
inline typename null_guard_return<cond,scope_guard_impl2<F,P1,P2> >::type
|
||||
make_guard_if_c(F fun,P1 p1,P2 p2)
|
||||
{
|
||||
return typename null_guard_return<cond,scope_guard_impl2<F,P1,P2> >::type(fun,p1,p2);
|
||||
}
|
||||
|
||||
template<typename C, typename F,typename P1,typename P2>
|
||||
inline typename null_guard_return<C::value,scope_guard_impl2<F,P1,P2> >::type
|
||||
make_guard_if(F fun,P1 p1,P2 p2)
|
||||
{
|
||||
return make_guard_if_c<C::value>(fun,p1,p2);
|
||||
}
|
||||
|
||||
template<typename F,typename P1,typename P2,typename P3>
|
||||
class scope_guard_impl3:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl3(F fun,P1 p1,P2 p2,P3 p3):fun_(fun),p1_(p1),p2_(p2),p3_(p3){}
|
||||
~scope_guard_impl3(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){fun_(p1_,p2_,p3_);}
|
||||
|
||||
protected:
|
||||
F fun_;
|
||||
const P1 p1_;
|
||||
const P2 p2_;
|
||||
const P3 p3_;
|
||||
};
|
||||
|
||||
template<typename F,typename P1,typename P2,typename P3>
|
||||
inline scope_guard_impl3<F,P1,P2,P3> make_guard(F fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return scope_guard_impl3<F,P1,P2,P3>(fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
template<bool cond,typename F,typename P1,typename P2,typename P3>
|
||||
inline typename null_guard_return<cond,scope_guard_impl3<F,P1,P2,P3> >::type
|
||||
make_guard_if_c(F fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return typename null_guard_return<cond,scope_guard_impl3<F,P1,P2,P3> >::type(fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
template<typename C,typename F,typename P1,typename P2,typename P3>
|
||||
inline typename null_guard_return< C::value,scope_guard_impl3<F,P1,P2,P3> >::type
|
||||
make_guard_if(F fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return make_guard_if_c<C::value>(fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
template<typename F,typename P1,typename P2,typename P3,typename P4>
|
||||
class scope_guard_impl4:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
scope_guard_impl4(F fun,P1 p1,P2 p2,P3 p3,P4 p4):
|
||||
fun_(fun),p1_(p1),p2_(p2),p3_(p3),p4_(p4){}
|
||||
~scope_guard_impl4(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){fun_(p1_,p2_,p3_,p4_);}
|
||||
|
||||
protected:
|
||||
F fun_;
|
||||
const P1 p1_;
|
||||
const P2 p2_;
|
||||
const P3 p3_;
|
||||
const P4 p4_;
|
||||
};
|
||||
|
||||
template<typename F,typename P1,typename P2,typename P3,typename P4>
|
||||
inline scope_guard_impl4<F,P1,P2,P3,P4> make_guard(
|
||||
F fun,P1 p1,P2 p2,P3 p3,P4 p4)
|
||||
{
|
||||
return scope_guard_impl4<F,P1,P2,P3,P4>(fun,p1,p2,p3,p4);
|
||||
}
|
||||
|
||||
template<bool cond, typename F,typename P1,typename P2,typename P3,typename P4>
|
||||
inline typename null_guard_return<cond,scope_guard_impl4<F,P1,P2,P3,P4> >::type
|
||||
make_guard_if_c(
|
||||
F fun,P1 p1,P2 p2,P3 p3,P4 p4)
|
||||
{
|
||||
return typename null_guard_return<cond,scope_guard_impl4<F,P1,P2,P3,P4> >::type(fun,p1,p2,p3,p4);
|
||||
}
|
||||
|
||||
template<typename C, typename F,typename P1,typename P2,typename P3,typename P4>
|
||||
inline typename null_guard_return<C::value,scope_guard_impl4<F,P1,P2,P3,P4> >::type
|
||||
make_guard_if(
|
||||
F fun,P1 p1,P2 p2,P3 p3,P4 p4)
|
||||
{
|
||||
return make_guard_if_c<C::value>(fun,p1,p2,p3,p4);
|
||||
}
|
||||
|
||||
template<class Obj,typename MemFun>
|
||||
class obj_scope_guard_impl0:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
obj_scope_guard_impl0(Obj& obj,MemFun mem_fun):obj_(obj),mem_fun_(mem_fun){}
|
||||
~obj_scope_guard_impl0(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){(obj_.*mem_fun_)();}
|
||||
|
||||
protected:
|
||||
Obj& obj_;
|
||||
MemFun mem_fun_;
|
||||
};
|
||||
|
||||
template<class Obj,typename MemFun>
|
||||
inline obj_scope_guard_impl0<Obj,MemFun> make_obj_guard(Obj& obj,MemFun mem_fun)
|
||||
{
|
||||
return obj_scope_guard_impl0<Obj,MemFun>(obj,mem_fun);
|
||||
}
|
||||
|
||||
template<bool cond, class Obj,typename MemFun>
|
||||
inline typename null_guard_return<cond,obj_scope_guard_impl0<Obj,MemFun> >::type
|
||||
make_obj_guard_if_c(Obj& obj,MemFun mem_fun)
|
||||
{
|
||||
return typename null_guard_return<cond,obj_scope_guard_impl0<Obj,MemFun> >::type(obj,mem_fun);
|
||||
}
|
||||
|
||||
template<typename C, class Obj,typename MemFun>
|
||||
inline typename null_guard_return<C::value,obj_scope_guard_impl0<Obj,MemFun> >::type
|
||||
make_obj_guard_if(Obj& obj,MemFun mem_fun)
|
||||
{
|
||||
return make_obj_guard_if_c<C::value>(obj,mem_fun);
|
||||
}
|
||||
|
||||
template<class Obj,typename MemFun,typename P1>
|
||||
class obj_scope_guard_impl1:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
obj_scope_guard_impl1(Obj& obj,MemFun mem_fun,P1 p1):
|
||||
obj_(obj),mem_fun_(mem_fun),p1_(p1){}
|
||||
~obj_scope_guard_impl1(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){(obj_.*mem_fun_)(p1_);}
|
||||
|
||||
protected:
|
||||
Obj& obj_;
|
||||
MemFun mem_fun_;
|
||||
const P1 p1_;
|
||||
};
|
||||
|
||||
template<class Obj,typename MemFun,typename P1>
|
||||
inline obj_scope_guard_impl1<Obj,MemFun,P1> make_obj_guard(
|
||||
Obj& obj,MemFun mem_fun,P1 p1)
|
||||
{
|
||||
return obj_scope_guard_impl1<Obj,MemFun,P1>(obj,mem_fun,p1);
|
||||
}
|
||||
|
||||
template<bool cond, class Obj,typename MemFun,typename P1>
|
||||
inline typename null_guard_return<cond,obj_scope_guard_impl1<Obj,MemFun,P1> >::type
|
||||
make_obj_guard_if_c( Obj& obj,MemFun mem_fun,P1 p1)
|
||||
{
|
||||
return typename null_guard_return<cond,obj_scope_guard_impl1<Obj,MemFun,P1> >::type(obj,mem_fun,p1);
|
||||
}
|
||||
|
||||
template<typename C, class Obj,typename MemFun,typename P1>
|
||||
inline typename null_guard_return<C::value,obj_scope_guard_impl1<Obj,MemFun,P1> >::type
|
||||
make_obj_guard_if( Obj& obj,MemFun mem_fun,P1 p1)
|
||||
{
|
||||
return make_obj_guard_if_c<C::value>(obj,mem_fun,p1);
|
||||
}
|
||||
|
||||
template<class Obj,typename MemFun,typename P1,typename P2>
|
||||
class obj_scope_guard_impl2:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
obj_scope_guard_impl2(Obj& obj,MemFun mem_fun,P1 p1,P2 p2):
|
||||
obj_(obj),mem_fun_(mem_fun),p1_(p1),p2_(p2)
|
||||
{}
|
||||
~obj_scope_guard_impl2(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){(obj_.*mem_fun_)(p1_,p2_);}
|
||||
|
||||
protected:
|
||||
Obj& obj_;
|
||||
MemFun mem_fun_;
|
||||
const P1 p1_;
|
||||
const P2 p2_;
|
||||
};
|
||||
|
||||
template<class Obj,typename MemFun,typename P1,typename P2>
|
||||
inline obj_scope_guard_impl2<Obj,MemFun,P1,P2>
|
||||
make_obj_guard(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
|
||||
{
|
||||
return obj_scope_guard_impl2<Obj,MemFun,P1,P2>(obj,mem_fun,p1,p2);
|
||||
}
|
||||
|
||||
template<bool cond, class Obj,typename MemFun,typename P1,typename P2>
|
||||
inline typename null_guard_return<cond,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type
|
||||
make_obj_guard_if_c(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
|
||||
{
|
||||
return typename null_guard_return<cond,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type(obj,mem_fun,p1,p2);
|
||||
}
|
||||
|
||||
template<typename C, class Obj,typename MemFun,typename P1,typename P2>
|
||||
inline typename null_guard_return<C::value,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type
|
||||
make_obj_guard_if(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
|
||||
{
|
||||
return make_obj_guard_if_c<C::value>(obj,mem_fun,p1,p2);
|
||||
}
|
||||
|
||||
template<class Obj,typename MemFun,typename P1,typename P2,typename P3>
|
||||
class obj_scope_guard_impl3:public scope_guard_impl_base
|
||||
{
|
||||
public:
|
||||
obj_scope_guard_impl3(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3):
|
||||
obj_(obj),mem_fun_(mem_fun),p1_(p1),p2_(p2),p3_(p3)
|
||||
{}
|
||||
~obj_scope_guard_impl3(){scope_guard_impl_base::safe_execute(*this);}
|
||||
void execute(){(obj_.*mem_fun_)(p1_,p2_,p3_);}
|
||||
|
||||
protected:
|
||||
Obj& obj_;
|
||||
MemFun mem_fun_;
|
||||
const P1 p1_;
|
||||
const P2 p2_;
|
||||
const P3 p3_;
|
||||
};
|
||||
|
||||
template<class Obj,typename MemFun,typename P1,typename P2,typename P3>
|
||||
inline obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3>
|
||||
make_obj_guard(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3>(obj,mem_fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
template<bool cond, class Obj,typename MemFun,typename P1,typename P2,typename P3>
|
||||
inline typename null_guard_return<cond,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type
|
||||
make_obj_guard_if_c(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return typename null_guard_return<cond,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type(obj,mem_fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
template<typename C, class Obj,typename MemFun,typename P1,typename P2,typename P3>
|
||||
inline typename null_guard_return<C::value,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type
|
||||
make_obj_guard_if(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
|
||||
{
|
||||
return make_obj_guard_if_c<C::value>(obj,mem_fun,p1,p2,p3);
|
||||
}
|
||||
|
||||
} /* namespace multi_index::detail */
|
||||
|
||||
} /* namespace multi_index */
|
||||
|
||||
} /* namespace boost */
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user