Question

Why is GCC giving me this error ? What am I doing wrong here ?

 temp.c: In function main:
 temp.c:6: error: invalid operands to binary +

Code:

 main()
 {
     char *Address1,*Address2,*NewAddress;
     Address1= (char*)0x12;
     Address2= (char*)0x34;
     NewAddress = Address1+Address2;
 }

Answer 1

Why do you want to do that?

The C language forbids addition of two pointers. It only defines (with severe restrictions) the addition of a pointer and an integer.

Basically, you can only add to a pointer an integer small enough so that the result was inside, or at the ending border, of some allocated memory zone.