/usr/include/CLAM/Functor1.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 __FUNCTOR1__
#define __FUNCTOR1__
#include "FunctorBase.hxx"
namespace CBL
{
/**
* Note that we are inheriting protected from FunctorBase
* so we don't feel so ashamed because of the previous
* void*'s and unions
*/
template < class Parm1Type >
class Functor1 : public FunctorBase
{
public:
Functor1( DummyInit * = 0 )
{
}
void operator()( Parm1Type param1 ) const
{
thunk( *this, param1 );
}
FunctorBase::operator bool;
protected:
typedef void (*Thunk) (const FunctorBase&, Parm1Type );
Functor1( 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 Func >
class FunctionTranslator1 : public Functor1< Parm1Type >
{
public:
FunctionTranslator1( Func f )
: Functor1< Parm1Type > ( thunk, NULL, (void*)f, size_t(0) )
{
}
static void thunk( const FunctorBase& ftor, Parm1Type param1 )
{
(Func(ftor.func))( param1 );
}
};
// From member function
template < class Parm1Type, class Callee, class MemFunc >
class MemberTranslator1 : public Functor1< Parm1Type >
{
public:
MemberTranslator1( Callee &c, MemFunc m )
: Functor1< Parm1Type > (thunk, &c, &m, sizeof( MemFunc ) )
{
}
static void thunk( const FunctorBase& ftor, Parm1Type param1 )
{
Callee* callee = (Callee*) ftor.callee;
#ifdef _MSC_VER
// Micro$oft Parser is BIG TIME 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 );
#else
MemFunc &memFunc(*(MemFunc*)(void*)(ftor.memFunc));
(callee->*memFunc)( param1 );
#endif
}
};
// Traitized signature, so we can get rid of passing that NULL pointer and get
// overloading
// NOTE: It WONT work yet
template < class TypeOfReturn, class CallType, class TParm1Type >
struct Func1Signature
{
typedef TypeOfReturn ( *Func ) ( TParm1Type );
typedef TypeOfReturn ( CallType::*MemFunc ) ( TParm1Type );
typedef TypeOfReturn ( CallType::*ct_MemFunc ) ( TParm1Type );
};
// 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 TypeOfReturn, class TParm1Type >
inline FunctionTranslator1<Parm1Type, TypeOfReturn (*) ( TParm1Type ) >
makeFunctor ( Functor1<Parm1Type>* , TypeOfReturn (*f)( TParm1Type ) )
{
return FunctionTranslator1<Parm1Type, TypeOfReturn (*)( TParm1Type )>(f);
}
// "specialized" makeFunctor function for pointer to non-const member function
template < class Parm1Type, class Callee, class TypeOfReturn, class CallType, class TParm1Type >
inline MemberTranslator1< Parm1Type, Callee, TypeOfReturn (CallType::*) (TParm1Type) >
makeFunctor ( Functor1<Parm1Type>*, Callee &c, TypeOfReturn (CallType::* f) (TParm1Type) )
{
typedef TypeOfReturn ( CallType::*MemFunc ) ( TParm1Type );
return MemberTranslator1< Parm1Type, Callee,MemFunc > ( c, f );
}
// "specialized" makeFunctor function for pointers to const member function
template < class Parm1Type, class Callee, class TypeOfReturn, class CallType, class TParm1Type >
inline MemberTranslator1< Parm1Type, const Callee, TypeOfReturn (CallType::*)( TParm1Type ) const >
makeFunctor ( Functor1<Parm1Type>* , const Callee &c, TypeOfReturn ( CallType::*f)( TParm1Type ) const )
{
typedef TypeOfReturn ( CallType::*MemFunc ) ( TParm1Type ) const;
return MemberTranslator1< Parm1Type, const Callee, MemFunc>(c,f);
}
}
#endif // Functor1.hxx
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