size_t can easily bite you* in the ass: import std.algorithm;
void main()
{
int[] a;
int val = max(0, a.length - 1);
assert(val > 0); // NG, woops!
}
* = me
That one is easy to catch, but in a complex expression you might have
ints and size_t and everything gets converted to unsigned, and then
you end up with some value over int.max which is implicitly assigned
to an int. :/
