Thread: dereferencing a void pointer

I wrote the following routine to put an address into reg.r7 and then realized I needed not the address in reg.r7 but the value pointed to by the address. I'm trying to derefence this address but I'm stumped. What I coded still just puts the address into reg.r7

Here is my function:

Code:

long convertDate(const void *date1) 
{
   ProcessControl& control = getControlArea(); 
   TPF_regs regs; 

   if(date1 !=0) 
   { 
      regs.r7 = *(long *)date1; 
      control.input.location = DatWk::FIRST_R7;
   }
   UA80(&regs);
   return regs.r1;
}

i don't think :: is a c operator

Maybe *date1 is an address?

:: is not the issue and works fine. The value in date1 is an address as I have passed by reference. Using the debugger I looked at the value in the storage location at the address in date1, it does indeed have the value which I want placed into regs.r7. Therefore, I do need to dereference date1. I know that since I passed a void pointer I need to tell the function what type this is a pointer to by using the type cast. Just for testing purposes I am testing the function with a long so I have type cast this as a long pointer and then tried to dereference... *(long *). I thought that would work but I continue to get the value in date1 instead of the data to which date1 points.

my code was actually correct. I was doing a 'duh' on my build. it was actually my build that wasn't correct.

and it still doesn't matter as it wasn't the question. the question was concerning dereferencing which is C.