3 ms·

The C99 language standard requires support for long long.

• dezgeg 12y ago
  But an implementation where sizeof(int) == sizeof(long) == sizeof(long long) is allowed by the specification.
  • marvy 12y ago
    On a (slightly) more practical level: there exists some largest integer type. You may someday need to sort it. If you want your sort to always work, you can't afford to overflow.