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// Copyright (C) 2008 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#undef DLIB_BOUND_FUNCTION_POINTER_KERNEl_ABSTRACT_
#ifdef DLIB_BOUND_FUNCTION_POINTER_KERNEl_ABSTRACT_
namespace dlib
{
// ----------------------------------------------------------------------------------------
class bound_function_pointer
{
/*!
INITIAL VALUE
is_set() == false
WHAT THIS OBJECT REPRESENTS
This object represents a function with all its arguments bound to
specific objects. For example:
void test(int& var) { var = var+1; }
bound_function_pointer funct;
int a = 4;
funct.set(test,a); // bind the variable a to the first argument of the test() function
// at this point a == 4
funct();
// after funct() is called a == 5
!*/
public:
bound_function_pointer (
);
/*!
ensures
- #*this is properly initialized
!*/
bound_function_pointer(
const bound_function_pointer& item
);
/*!
ensures
- *this == item
!*/
~bound_function_pointer (
);
/*!
ensures
- any resources associated with *this have been released
!*/
bound_function_pointer& operator=(
const bound_function_pointer& item
);
/*!
ensures
- *this == item
!*/
void clear(
);
/*!
ensures
- #*this has its initial value
!*/
bool is_set (
) const;
/*!
ensures
- if (this->set() has been called) then
- returns true
- else
- returns false
!*/
operator some_undefined_pointer_type (
) const;
/*!
ensures
- if (is_set()) then
- returns a non 0 value
- else
- returns a 0 value
!*/
bool operator! (
) const;
/*!
ensures
- returns !is_set()
!*/
void operator () (
) const;
/*!
requires
- is_set() == true
ensures
- calls the bound function on the object(s) specified by the last
call to this->set()
throws
- any exception thrown by the function specified by
the previous call to this->set().
If any of these exceptions are thrown then the call to this
function will have no effect on *this.
!*/
void swap (
bound_function_pointer& item
);
/*!
ensures
- swaps *this and item
!*/
// ----------------------
template <typename F>
void set (
F& function_object
);
/*!
requires
- function_object() is a valid expression
ensures
- #is_set() == true
- calls to this->operator() will call function_object()
(This seems pointless but it is a useful base case)
!*/
template < typename T>
void set (
T& object,
void (T::*funct)()
);
/*!
requires
- funct == a valid member function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)()
!*/
template < typename T>
void set (
const T& object,
void (T::*funct)()const
);
/*!
requires
- funct == a valid bound function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)()
!*/
void set (
void (*funct)()
);
/*!
requires
- funct == a valid function pointer
ensures
- #is_set() == true
- calls to this->operator() will call funct()
!*/
// ----------------------
template <typename F, typename A1 >
void set (
F& function_object,
A1& arg1
);
/*!
requires
- function_object(arg1) is a valid expression
ensures
- #is_set() == true
- calls to this->operator() will call function_object(arg1)
!*/
template < typename T, typename T1, typename A1 >
void set (
T& object,
void (T::*funct)(T1),
A1& arg1
);
/*!
requires
- funct == a valid member function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1)
!*/
template < typename T, typename T1, typename A1 >
void set (
const T& object,
void (T::*funct)(T1)const,
A1& arg1
);
/*!
requires
- funct == a valid bound function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1)
!*/
template <typename T1, typename A1>
void set (
void (*funct)(T1),
A1& arg1
);
/*!
requires
- funct == a valid function pointer
ensures
- #is_set() == true
- calls to this->operator() will call funct(arg1)
!*/
// ----------------------
template <typename F, typename A1, typename A2 >
void set (
F& function_object,
A1& arg1,
A2& arg2
);
/*!
requires
- function_object(arg1,arg2) is a valid expression
ensures
- #is_set() == true
- calls to this->operator() will call function_object(arg1,arg2)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2>
void set (
T& object,
void (T::*funct)(T1,T2),
A1& arg1,
A2& arg2
);
/*!
requires
- funct == a valid member function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2>
void set (
const T& object,
void (T::*funct)(T1,T2)const,
A1& arg1,
A2& arg2
);
/*!
requires
- funct == a valid bound function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2)
!*/
template <typename T1, typename A1,
typename T2, typename A2>
void set (
void (*funct)(T1,T2),
A1& arg1,
A2& arg2
);
/*!
requires
- funct == a valid function pointer
ensures
- #is_set() == true
- calls to this->operator() will call funct(arg1,arg2)
!*/
// ----------------------
template <typename F, typename A1, typename A2, typename A3 >
void set (
F& function_object,
A1& arg1,
A2& arg2,
A3& arg3
);
/*!
requires
- function_object(arg1,arg2,arg3) is a valid expression
ensures
- #is_set() == true
- calls to this->operator() will call function_object(arg1,arg2,arg3)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3>
void set (
T& object,
void (T::*funct)(T1,T2,T3),
A1& arg1,
A2& arg2,
A3& arg3
);
/*!
requires
- funct == a valid member function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2,arg3)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3>
void set (
const T& object,
void (T::*funct)(T1,T2,T3)const,
A1& arg1,
A2& arg2,
A3& arg3
);
/*!
requires
- funct == a valid bound function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2,arg3)
!*/
template <typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3>
void set (
void (*funct)(T1,T2,T3),
A1& arg1,
A2& arg2,
A3& arg3
);
/*!
requires
- funct == a valid function pointer
ensures
- #is_set() == true
- calls to this->operator() will call funct(arg1,arg2,arg3)
!*/
// ----------------------
template <typename F, typename A1, typename A2, typename A3, typename A4>
void set (
F& function_object,
A1& arg1,
A2& arg2,
A3& arg3,
A4& arg4
);
/*!
requires
- function_object(arg1,arg2,arg3,arg4) is a valid expression
ensures
- #is_set() == true
- calls to this->operator() will call function_object(arg1,arg2,arg3,arg4)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3,
typename T4, typename A4>
void set (
T& object,
void (T::*funct)(T1,T2,T3,T4),
A1& arg1,
A2& arg2,
A3& arg3,
A4& arg4
);
/*!
requires
- funct == a valid member function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2,arg3,arg4)
!*/
template < typename T, typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3,
typename T4, typename A4>
void set (
const T& object,
void (T::*funct)(T1,T2,T3,T4)const,
A1& arg1,
A2& arg2,
A3& arg3,
A4& arg4
);
/*!
requires
- funct == a valid bound function pointer for class T
ensures
- #is_set() == true
- calls to this->operator() will call (object.*funct)(arg1,arg2,arg3,arg4)
!*/
template <typename T1, typename A1,
typename T2, typename A2,
typename T3, typename A3,
typename T4, typename A4>
void set (
void (*funct)(T1,T2,T3,T4),
A1& arg1,
A2& arg2,
A3& arg3,
A4& arg4
);
/*!
requires
- funct == a valid function pointer
ensures
- #is_set() == true
- calls to this->operator() will call funct(arg1,arg2,arg3,arg4)
!*/
};
// ----------------------------------------------------------------------------------------
inline void swap (
bound_function_pointer& a,
bound_function_pointer& b
) { a.swap(b); }
/*!
provides a global swap function
!*/
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_BOUND_FUNCTION_POINTER_KERNEl_ABSTRACT_
|
