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First of all let me say that I'm creating software for microcontrollers, so RAM usage matters and it makes sense to put large blocks of const data to non-volatile (flash) memory. What I'm trying to achieve is to find a nice way to create a "split" object in C++. As an example let's assume that there's one byte of data (read/write) and a multibyte "receipt" for accessing it. Let's say that the "receipt" is a long string that is a filename, and the media that it points to is slow, so it makes sense to buffer the single byte in memory, instead of actually reading it on each request. class Data { uint8_t byte; bool valid; const char filename[128]; uint8_t read() { if (!valid) performReallySlowRead(filename, &byte); valid = true; return byte; }; void write(uint8_t new_value) { byte = new_value; performRealWriteToMedia(filename, byte); valid = true; }; } The obvious problem with this approach is that whole 130-bytes end up in RAM, while only two of them need to be changed. So I've come up with an idea of split-object: class DataNonConst { uint8_t byte; bool valid; } class DataConst { const char filename[128]; DataNonConst * const data; } static DataNonConst storage; const DataConst holder("some_long_name_here", &storage); Now the only problem is that if I would like to have a few hundred of such split-objects the process of creating them (so creating TWO objects and linking second to first) gets pretty boring and problematic... So the question is - is there some nice way to make it easier to use, preferably a clever-C++-trick or maybe some template magic? That is - how to create TWO objects, linked together, with a single statement, preferably one object is hidden? I don't think macro-solution is possible here, as there's no easy way to automate creation of the name

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