Array of struct with function pointers

[JohanErlank]

Hi

I am trying the following:

file.h:

typedef struct
{
int iBit;
void (*save_fun)(void);
} __save_rec;

...

#define MAXRECS 20

class TForm1 : public TForm
{
__published:
..
private:
__save_rec SaveData[MAXRECS];
void SavPan(void);
void SavAmt(void);
void SavFD7(void);

void __fastcall FillArray();
void __fastcall ExecFun(int iVal);
public:
...
};
...

file.cpp:

...

void __fastcall TForm1::FillArray()
{
SaveData[0].iBit=0;
SaveData[0].save_fun=SavPan;
...
}

void __fastcall TForm1::StepVals(void)
{
for (int i=0;i<10;i++)
{
ExecFun(i);
}
}

void __fastcall TForm1::ExecFun(int iVal)
{
if(iVal==SaveData[iVal].iBit)
SaveData[iVal].save_fun();
}

but it does not work. I get all kinds of errors. I have done this in standard C, no problem, but as I am new to c++ (especially Builder)I have no idea on how to get this done.

Any ideas or pointers on how to get something like this done?

Thanks!

Johan

 

[JohanErlank]

I managed to solve this one myself using __closure:

typedef struct
{
int iBit;
void (__closure *save_fun)(void);
} __save_rec;

and keeping the rest as is.

Now to figure out mass initialisation as follows (in standard c

const __save_rec SaveData[] =
{
{ 1, TRBMAP, SavBmap },
{ 2, TRPAN, SavPan },
{ 3, TRRSP.TRPROC, GenSav },
{ 4, TRRSP.TRTOTAM, SavAmt },
...
};