Hi all,
I've learned native C and I'm trying to write now in C++. I want to use a
simple routine from the "Numerical Recipes in C" for using a Newton-Raphson
Method within my c++ class. The Newton-Raphson function for finding roots is
called:
float rtsafe(void (*funcd)(float, float *, float *), float x1, float x2,
float xacc)
'funcd' is the pointer to an external function as common in C. But since I
want to use it with a member function of my class for computing its roots, I
think I can't do that, because member functions are adressed relative to my
class.
Could anyone please give me some hints what I have to do, so that I can use
an external function like this and give it member functions for computation.
(Please apologise my bad style talking about coding...)
Thanx a lot,
uli
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3  1430 
"uli" <NO********@nur fuerspam.de> wrote in message
news:c7******** **@newssrv.muc. infineon.com... Hi all,
I've learned native C and I'm trying to write now in C++. I want to use a
simple routine from the "Numerical Recipes in C" for using a
Newton-Raphson Method within my c++ class. The Newton-Raphson function for finding roots
is called:
float rtsafe(void (*funcd)(float, float *, float *), float x1, float
x2, float xacc)
'funcd' is the pointer to an external function as common in C. But since I
want to use it with a member function of my class for computing its roots,
I think I can't do that, because member functions are adressed relative to
my class.
Could anyone please give me some hints what I have to do, so that I can
use an external function like this and give it member functions for
computation. (Please apologise my bad style talking about coding...)
Hopefully this gives the idea.
float rtsafe(MyClass* my_class, void (MyClass::*func d)(float, float *,
float *), float x1, float x2, float xacc)
{
(my_class->*funcd)(a, b, c);
}
john
Thank you a lot for your quick responses. I think that are the Infos I
need...
uli
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