Problems with memory dynamic allocation: main: malloc.c:3096: sYSMALLOc?

The problem appears to be at the line where you call malloc() .

While this may not be an option for you, you would be better off using C++. Among its many software engineering benefits, its new idiom for allocating memory prevents exactly this kind of error, since you must explicitly use the object type: newPtr = new mazzo.

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