/usr/include/CLAM/Functor3.hxx is in libclam-dev 1.4.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2001-2002 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __FUNCTOR3__
#define __FUNCTOR3__
#include "FunctorBase.hxx"
namespace CBL
{
template < class Parm1Type, class Parm2Type, class Parm3Type >
class Functor3 : public FunctorBase
{
public:
Functor3( DummyInit * = 0 )
{
}
void operator()( Parm1Type param1, Parm2Type param2, Parm3Type param3 ) const
{
thunk( *this, param1, param2, param3 );
}
FunctorBase::operator bool;
protected:
typedef void (*Thunk) (const FunctorBase&, Parm1Type, Parm2Type, Parm3Type );
Functor3( Thunk t, const void* c, const void* f, size_t sz )
: FunctorBase( c, f, sz ), thunk( t )
{
}
private:
Thunk thunk;
};
// Translators
// From non-member function
template < class Parm1Type, class Parm2Type, class Parm3Type, class Func >
class FunctionTranslator3 : public Functor3< Parm1Type, Parm2Type, Parm3Type >
{
public:
FunctionTranslator3( Func f )
: Functor3< Parm1Type, Parm2Type, Parm3Type > ( thunk, NULL, (void*)f, size_t(0) )
{
}
static void thunk( const FunctorBase& ftor, Parm1Type param1, Parm2Type param2, Parm3Type param3 )
{
(Func(ftor.func))( param1, param2, param3 );
}
};
// From member function
template < class Parm1Type, class Parm2Type, class Parm3Type, class Callee, class MemFunc >
class MemberTranslator3 : public Functor3< Parm1Type, Parm2Type, Parm3Type >
{
public:
MemberTranslator3( Callee &c, MemFunc m )
: Functor3< Parm1Type, Parm2Type, Parm3Type > (thunk, &c, &m, sizeof( MemFunc ) )
{
}
static void thunk( const FunctorBase& ftor, Parm1Type param1, Parm2Type param2, Parm3Type param3 )
{
Callee* callee = (Callee*) ftor.callee;
#ifdef _MSC_VER
// Microsoft Parser is shit, just because it didn't like MemFunc &memFunc( *(MemFunc*)(void*)(ftor.memFunc) );
// I HAD to make this horrible kludge :_(
void* pvoid = (void*) ftor.memFunc;
MemFunc* pfunc = (MemFunc*) pvoid;
MemFunc& mfref = *pfunc;
(callee->*mfref)(param1,param2,param3);
#else
MemFunc &memFunc(*(MemFunc*)(void*)(ftor.memFunc));
(callee->*memFunc)( param1, param2, param3 );
#endif
}
};
// makeFunctors helper functions
// NOTE: There must be a mean available for the compiler to do an implicit cast between
// Parm1Type and TParm1Type
// "specialized" makeFunctor function for pointer to non-member functions
template < class Parm1Type, class Parm2Type, class Parm3Type, class TypeOfReturn, class TParm1Type, class TParm2Type, class TParm3Type >
inline FunctionTranslator3<Parm1Type, Parm2Type, Parm3Type, TypeOfReturn (*) ( TParm1Type, TParm2Type, TParm3Type ) >
makeFunctor ( Functor3<Parm1Type,Parm2Type,Parm3Type>* , TypeOfReturn (*f)( TParm1Type, TParm2Type, TParm3Type ) )
{
return FunctionTranslator3<Parm1Type, Parm2Type, Parm3Type, TypeOfReturn (*)( TParm1Type, TParm2Type, TParm3Type )>(f);
}
// "specialized" makeFunctor function for pointer to non-const member function
template < class Parm1Type, class Parm2Type, class Parm3Type, class Callee, class TypeOfReturn, class CallType, class TParm1Type, class TParm2Type, class TParm3Type >
inline MemberTranslator3< Parm1Type, Parm2Type, Parm3Type, Callee, TypeOfReturn (CallType::*) (TParm1Type, TParm2Type, TParm3Type) >
makeFunctor ( Functor3<Parm1Type,Parm2Type,Parm3Type>*, Callee &c, TypeOfReturn (CallType::*f) (TParm1Type,TParm2Type,TParm3Type) )
{
typedef TypeOfReturn ( CallType::*MemFunc ) ( TParm1Type, TParm2Type, TParm3Type );
return MemberTranslator3< Parm1Type, Parm2Type, Parm3Type, Callee, MemFunc > ( c, f );
}
// "specialized" makeFunctor function for pointers to const member function
template < class Parm1Type, class Parm2Type, class Parm3Type, class Callee, class TypeOfReturn, class CallType, class TParm1Type, class TParm2Type, class TParm3Type >
inline MemberTranslator3< Parm1Type, Parm2Type, Parm3Type, const Callee, TypeOfReturn (CallType::*)( TParm1Type, TParm2Type, TParm3Type ) const >
makeFunctor ( Functor3<Parm1Type,Parm2Type,Parm3Type>* , const Callee &c, TypeOfReturn ( CallType::*f)( TParm1Type, TParm2Type, TParm3Type ) const )
{
typedef TypeOfReturn ( CallType::*MemFunc ) ( TParm1Type, TParm2Type, TParm3Type ) const;
return MemberTranslator3< Parm1Type, Parm2Type, Parm3Type, const Callee, MemFunc>(c,f);
}
}
#endif // Functor3.hxx
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