On Tuesday, 27 February 2018 at 11:33:04 UTC, Simen Kjærås wrote:
That only checks if the first element is the same. For a full
'is slice' check you'd need something like this:
assert(a.ptr <= b.ptr && b.ptr + b.length <= a.ptr +
a.length);
// Or:
auto c = b.ptr - a.ptr;
assert(c >= 0 && c + b.length <= a.length);
And trust me, the compiler complains about both of these.
Possibly rightfully in the first example, but the latter never
does anything scary with the given pointers.
--
Simen
aka isSliceOf -> https://github.com/dlang/phobos/pull/6147
