Hi guys,
I'm receiving the Error: 'L6200E: Symbol multiply defined'.
I understand one workaround is to include externs, however this is unideal. With most compilers/linkers something such as:
#ifndef bla #define bla
// Content
#endif
Would prevent double inclusion, however it doesn't appear to work with Keil.
Any ideas on a similar solution?
Many thanks
That's just because you rarely use globals in C++, the same problem would have occurred in C++ if you had tried the same thing.
Instead you hand around pointers and references. The advantage is that pointers are just addresses, so declaring a class is sufficient, you don't need to know any internals to be able to create a pointer to it. References are just a different syntax for constant pointers (not pointers to constants), so the same applies to them.