tuxduino:
My doubt is about code duplication when using a template class with the same parameters in two compilation units. E. g. I have to classes, each written with the usual header/cpp file separation. They both #include MPLArray.h and they both have a data member which is an implementation if the template class with the same parameters, say MPLArray<int, 10>.
The sketch #includes both classes header files, instantiates and uses one (global) object of each class.
Will the final executable contain only one instance of the MPLArrary<int, 10> code, or will there be code duplication ?
What should happen is that the compiler will instantiate the template once for each file, then the linker will spot that they are the same and only include one of them in the final code. To test this, if you change the second parameter for one of the instantiations, you should see the code size jump up.