> if this int or uint under or overflows, throw an exception
Overflow flags are supported on some architectures, so it would really just be a matter of checking that flag.
Overflow flags are supported on some architectures, so it would really just be a matter of checking that flag.
> For signed integers, the operations +, -, , /, and << may legally overflow and the resulting value exists and is deterministically defined by …*
It does not go on to define the overflow values; that gets to be implementation defined.
This is in contrast to unsigned integers, which the spec does precisely define overflow for.