Are these sizes correct for an array of variables and an array of pointers to variables?

You just print out the values: char gArray1100; char gArray210050; char* gArray310050; std::cout.

Sizeof(char) is by definition 1 so it would be 100, 5000, and 20000 or 40000 (on most systems - 128+ bit pointers aren't prohibited by the standard).

Sizeof(char) is defined to always be equal to 1 by the c++ standard, if I remember correctly. So, no, those are incorrect.

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