size of iss - GADGET
If the size of the int is that important one can use int16_t, int32_t and int64_t (need the iostream include for that if I remember correctly). What's nice about this that int64_t should not have issues on a 32bit system (this will impact the performance though). CNN: The end of the ISS is looming, and the US could have a big problem The end of the ISS is looming, and the US could have a big problem What is the difference between .size() and .length ?
Understanding the Context
Is .size() only for arraylists and .length only for arrays? What does the C++ standard say about the size of int, long? int a[17]; size_t n = sizeof(a); On my computer, ints are 4 bytes long, so n is 68. To determine the number of elements in the array, we can divide the total size of the array by the size of the array element.
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Key Insights
You could do this with the type, like this: How do I determine the size of my array in C? - Stack Overflow 82 size_t is the result type of the sizeof operator. Use size_t for variables that model size or index in an array. size_t conveys semantics: you immediately know it represents a size in bytes or an index, rather than just another integer. Also, using size_t to represent a size in bytes helps making the code portable.