pointer to function

[Gernot Frisch]

static short gfunc(short a, short b)
{return 0;}

class B{
B();
short(m_func)(short, short);
}

B::B()
{
m_func = gfunc;
}
error C2659: '=' : overloaded function as left operand

I'm not very familiar with pointer to functions. Can you help?

Thank you,
Gernot

--
-Gernot
int main(int argc, char** argv) {printf
("%silto%c%cf%cgl%ssic%ccom%c", "ma", 58, 'g', 64, "ba", 46, 10);}

________________________________________
Looking for a good game? Do it yourself!
GLBasic - you can do
www.GLBasic.com

[Senapathy]

"Gernot Frisch" <[e-mail]> wrote in message
news:2k************@uni-berlin.de...

static short gfunc(short a, short b)
{return 0;}

// 1. Create a type for the function pointer...

typedef short(*pfn)(short, short);
class B{
B();
short(m_func)(short, short);
// 2. Have a member variable of that type

pfn m_func;
}

B::B()
{
m_func = gfunc;
}

Rest should be fine:

// invoke the function
B bObj;
bObj.m_func(1, 2);

Regards,
Senapathy

error C2659: '=' : overloaded function as left operand

I'm not very familiar with pointer to functions. Can you help?

Thank you,
Gernot

--
-Gernot
int main(int argc, char** argv) {printf
("%silto%c%cf%cgl%ssic%ccom%c", "ma", 58, 'g', 64, "ba", 46, 10);}

________________________________________
Looking for a good game? Do it yourself!
GLBasic - you can do
www.GLBasic.com

[Senapathy]

"Senapathy" <se*********@siemens.com> wrote in message
news:cc**********@news.mch.sbs.de...

"Gernot Frisch" <[e-mail]> wrote in message
news:2k************@uni-berlin.de...

static short gfunc(short a, short b)
{return 0;}

// 1. Create a type for the function pointer...

typedef short(*pfn)(short, short);

Ok, the type creation is not really required.... I just used it the way I am
always used to creating fn ptrs.

class B{
B();
short(m_func)(short, short);

Just change this to short( * m_func)(short, short);
^^^^
After all you want to declare a function _pointer_ !

Regards,
Senapathy

// 2. Have a member variable of that type

pfn m_func;

}

B::B()
{
m_func = gfunc;
}

Rest should be fine:

// invoke the function
B bObj;
bObj.m_func(1, 2);

Regards,
Senapathy

error C2659: '=' : overloaded function as left operand

I'm not very familiar with pointer to functions. Can you help?

Thank you,
Gernot

--
-Gernot
int main(int argc, char** argv) {printf
("%silto%c%cf%cgl%ssic%ccom%c", "ma", 58, 'g', 64, "ba", 46, 10);}

________________________________________
Looking for a good game? Do it yourself!
GLBasic - you can do
www.GLBasic.com

[Gernot Frisch]

>

Just change this to short( * m_func)(short, short);
^^^^
After all you want to declare a function _pointer_ !

Ah, all right. What good would "void (a)()" be for? Would it mean the
same as "void a();" ?
Anyway, thank you.
Gernot

[JKop]

Gernot Frisch posted:

Just change this to short( * m_func)(short, short);
^^^^
After all you want to declare a function _pointer_ !

Ah, all right. What good would "void (a)()" be for? Would it mean the
same as "void a();" ?
Anyway, thank you.
Gernot

Yes, it would.

int (main)(void)
{

}
-JKOp