Questions

1. What is the difference between a short int and an int?
2. What is the size of an int?
3. Is the size of a signed int and an unsigned int different?
4. What is the difference between an int32_t and an int?
5. Is an int16_t guaranteed to be 16 bits?
6. What does #pragma pack do?
7. Is it possible to guarantee structure packing in all cases?