I have a program which is to be used with a shared library.
I have one library (1) that is compiled with the methods full of code i.e.
class A
{
public:
int* funcA(int a, int b)
{
int* pInt = new int;
*pInt = a + (b * 20);
return pInt;
}
};
Then I have another library (2) with exactly the same name and interface with nothing in the methods i.e. a dummy class
class A
{
public:
int* funcA(int a, int b)
{
return 0;
}
};
(note: code just used to illustrate my problem)
If I compile against library 1 and then use library 1 at runtime, everything works as expected.
If I compile against library 2 and then use library 1 at runtime, the first called to funcA dies.
If I used nm -D libMy.so and look at the offset of funcA at runtime, it is different. Is this included in the binary?
Ive read various manuals and tutorials but am none the wiser as to how the compilation and runtime aspect causes this failure. I would have thought the interface is the same so the method would succeed.
Thanks.
