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GeneralRe: CString assignment crashes on Windows 7 Pin
Stephen Hewitt18-Dec-12 18:44
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QuestionSegmentation Fault in GTK library files Pin
SrivathsanRaghavan2-Dec-12 20:20
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AnswerRe: Segmentation Fault in GTK library files Pin
Richard MacCutchan2-Dec-12 22:47
mveRichard MacCutchan2-Dec-12 22:47 
GeneralRe: Segmentation Fault in GTK library files Pin
SrivathsanRaghavan2-Dec-12 23:11
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GeneralRe: Segmentation Fault in GTK library files Pin
Richard MacCutchan2-Dec-12 23:28
mveRichard MacCutchan2-Dec-12 23:28 
GeneralRe: Segmentation Fault in GTK library files Pin
SrivathsanRaghavan3-Dec-12 1:25
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GeneralRe: Segmentation Fault in GTK library files Pin
Richard MacCutchan3-Dec-12 1:55
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Questioncan i use mem_fun like this? Pin
Falconapollo1-Dec-12 18:37
Falconapollo1-Dec-12 18:37 
I want to set the function pointer at runtime. But i'm stuck here. When i use global function or static class member function, everything is ok. but, when the function is ordinary class member functions. i always got compiler errors. Here is the code:

C++
class A   
{
    int val;
public:
    A() { val = 0; }
    A(int j) { val = j; }

    int aFun(int k) {val -= k; return val; }
};

typedef int (* func)(int );
class B
{
    func m_addr;
public:
    B(func param)
        : m_addr(param)
    {

    }
    void execute()
    {
        cout << m_addr(9) << endl;
    }
};


I'm trying to use them like this:

C++
/* error C2355: 'this' : can only be referenced inside non-static member functions error C2064: term does not evaluate to a function taking 1 arguments class does not define an 'operator()' or a user defined conversion operator to a pointer-to-function or reference-to-function that takes appropriate number of arguments */
A a;
B b(A::aFun); 
b.execute();


after googled a lot, i found that std::mem_fun may be helpful. but i don't know how to use it. anyone can help me?

PS: i'm using Visual C++ 2010
AnswerRe: can i use mem_fun like this? Pin
Richard MacCutchan1-Dec-12 21:56
mveRichard MacCutchan1-Dec-12 21:56 
AnswerRe: can i use mem_fun like this? Pin
Stephen Hewitt2-Dec-12 5:45
Stephen Hewitt2-Dec-12 5:45 
AnswerRe: can i use mem_fun like this? Pin
troyxyz2-Dec-12 7:21
troyxyz2-Dec-12 7:21 
AnswerRe: can i use mem_fun like this? Pin
Stefan_Lang3-Dec-12 3:14
Stefan_Lang3-Dec-12 3:14 
AnswerRe: can i use mem_fun like this? Pin
Stefan_Lang3-Dec-12 4:45
Stefan_Lang3-Dec-12 4:45 
GeneralRe: can i use mem_fun like this? Pin
Falconapollo4-Dec-12 15:43
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Questionclient server for running the program Pin
danielsutopo1-Dec-12 16:09
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AnswerRe: client server for running the program Pin
Albert Holguin1-Dec-12 18:22
professionalAlbert Holguin1-Dec-12 18:22 
QuestionLimiting selected checkbox items in a CListCtrl Pin
softwaremonkey1-Dec-12 2:40
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SuggestionRe: Limiting selected checkbox items in a CListCtrl Pin
David Crow1-Dec-12 4:51
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AnswerRe: Limiting selected checkbox items in a CListCtrl Pin
Jochen Arndt2-Dec-12 0:56
professionalJochen Arndt2-Dec-12 0:56 
GeneralRe: Limiting selected checkbox items in a CListCtrl Pin
softwaremonkey2-Dec-12 23:45
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QuestionUsing VISUAL C++ 6.0 with OLE Pin
ForNow30-Nov-12 10:06
ForNow30-Nov-12 10:06 
AnswerRe: Using VISUAL C++ 6.0 with OLE Pin
jschell30-Nov-12 11:46
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SuggestionRe: Using VISUAL C++ 6.0 with OLE Pin
David Crow30-Nov-12 15:24
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GeneralRe: Using VISUAL C++ 6.0 with OLE Pin
ForNow4-Dec-12 14:48
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AnswerRe: Using VISUAL C++ 6.0 with OLE Pin
Stephen Hewitt2-Dec-12 5:54
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