add boost/TR1 like usage of Functor, with a test program from boost 1.33
git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@320 7ec92016-0320-0410-acc4-a06ded1c099a
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syntheticpp
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4 changed files with 1295 additions and 14 deletions
337
include/loki/Function.h
Executable file
337
include/loki/Function.h
Executable file
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////////////////////////////////////////////////////////////////////////////////
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// The Loki Library
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// Copyright (c) 2005 Peter Kümmel
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// Permission to use, copy, modify, distribute and sell this software for any
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// purpose is hereby granted without fee, provided that the above copyright
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// notice appear in all copies and that both that copyright notice and this
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// permission notice appear in supporting documentation.
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// The author makes no representations about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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////////////////////////////////////////////////////////////////////////////////
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#define LOKI_ENABLE_FUNCTION
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#include <loki/Functor.h>
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#include <loki/Sequence.h>
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namespace Loki
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{
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template<class R>
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struct Function;
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////////////////////////////////////////////////////////////////////////////////
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// Function allows a boost/TR1 like usage of Functor.
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//
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// e.g. Functor<int,LOKI_TYPELIST_2(int,int)> becomes Function<int(int,int)>
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////////////////////////////////////////////////////////////////////////////////
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template<class R>
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struct Function<R()> : public Functor<R>
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{
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typedef Functor<R> FBase;
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Function() : FBase() {}
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Function(const Function& func) : FBase()
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{
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if( !func.empty())
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FBase::operator=(func);
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}
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// emptiness
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template<class R2>
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Function(Function<R2()> func) : FBase()
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{
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if(!func.empty())
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FBase::operator=(func);
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}
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// clear by '= 0'
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Function(const int i) : FBase()
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{
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if(i==0)
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FBase::clear();
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else
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throw std::runtime_error("Loki::Function(const int i): i!=0");
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}
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template<class Func>
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Function(Func func) : FBase(func) {}
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template<class Host, class Func>
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Function(const Host& host, const Func& func) : FBase(host,func) {}
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};
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////////////////////////////////////////////////////////////////////////////////
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// macros for the repetitions
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////////////////////////////////////////////////////////////////////////////////
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#define LOKI_FUNCTION_BODY \
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\
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Function() : FBase() {} \
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\
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Function(const Function& func) : FBase() \
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{ \
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if( !func.empty()) \
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FBase::operator=(func); \
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} \
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\
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Function(const int i) : FBase() \
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{ \
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if(i==0) \
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FBase::clear(); \
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else \
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throw std::runtime_error( \
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"Loki::Function(const int i): i!=0"); \
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} \
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\
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template<class Func> \
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Function(Func func) : FBase(func) {} \
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\
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template<class Host, class Func> \
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Function(const Host& host, const Func& func): FBase(host,func) {}
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#define LOKI_FUNCTION_R2_CTOR_BODY \
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\
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: FBase() \
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{ \
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if(!func.empty()) \
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FBase::operator=(func); \
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}
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////////////////////////////////////////////////////////////////////////////////
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// repetitions
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////////////////////////////////////////////////////////////////////////////////
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template<class R,class P01>
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struct Function<R(P01)>
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: public Loki::Functor<R,typename Seq<P01>::Type>
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{
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typedef Functor<R,typename Seq<P01>::Type> FBase;
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template<class R2,class Q01>
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Function(Function<R2(Q01)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R,class P01,class P02>
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struct Function<R(P01,P02)>
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: public Functor<R,typename Seq<P01,P02>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02>::Type> FBase;
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template<class R2,class Q01, class Q02>
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Function(Function<R2(Q01,Q02)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R,class P01,class P02, class P03>
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struct Function<R(P01,P02,P03)>
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: public Functor<R,typename Seq<P01,P02,P03>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03>::Type> FBase;
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template<class R2,class Q01, class Q02,class Q03>
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Function(Function<R2(Q01,Q02,Q03)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R,class P01,class P02, class P03,class P04>
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struct Function<R(P01,P02,P03,P04)>
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: public Functor<R,typename Seq<P01,P02,P03,P04>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04>::Type> FBase;
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template<class R2,class Q01,class Q02, class Q03,class Q04>
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Function(Function<R2(Q01,Q02,Q03,Q04)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R,class P01,class P02, class P03,class P04,class P05>
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struct Function<R(P01,P02,P03,P04,P05)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05>::Type> FBase;
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template<class R2,class Q01,class Q02, class Q03,class Q04,class Q05>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06>
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struct Function<R(P01,P02,P03,P04,P05,P06)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09 >::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10,
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class P11>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11>::Type>FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10,
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class Q11>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10,Q11)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10,
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class P11,class P12>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10,
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class Q11,class Q12>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10,Q11)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10,
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class P11,class P12, class P13>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10,
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class Q11,class Q12, class Q13>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10,Q11,Q12,Q13)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10,
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class P11,class P12, class P13,class P14>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10,
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class Q11,class Q12, class Q13,class Q14>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10,Q11,Q12,Q13,Q14)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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template<class R, class P01,class P02, class P03,class P04,class P05,
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class P06,class P07, class P08,class P09,class P10,
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class P11,class P12, class P13,class P14,class P15>
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struct Function<R(P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14,P15)>
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: public Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14,P15>::Type>
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{
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typedef Functor<R,typename Seq<P01,P02,P03,P04,P05,P06,P07,P08,P09,P10,P11,P12,P13,P14,P15>::Type> FBase;
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template<class R2, class Q01,class Q02, class Q03,class Q04,class Q05,
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class Q06,class Q07, class Q08,class Q09,class Q10,
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class Q11,class Q12, class Q13,class Q14,class Q15>
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Function(Function<R2(Q01,Q02,Q03,Q04,Q05,Q06,Q07,Q08,Q09,Q10,Q11,Q12,Q13,Q14,Q15)> func)
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LOKI_FUNCTION_R2_CTOR_BODY
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LOKI_FUNCTION_BODY
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};
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}// namespace Loki
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