From bulletin #4: "-2147483648 is positive. This is because 2147483648 cannot fit in the type int, so (following the ISO C rules) its data type is unsigned lon

From bulletin #4: "-2147483648 is positive. This is because 2147483648 cannot fit in the type int, so (following the ISO C rules) its data type is unsigned long int. Negating this value yields 2147483648 again." This is not true. If a decimal integer constant value cannot be represented in type "int", the next candidate type is "long int". If the value cannot fit in "long int" either, the next type to try is "long long int" in C99 and "unsigned long int" only in C89.