On Tuesday, 12 November 2013 at 15:56:25 UTC, Andrei Alexandrescu
wrote:
On 11/12/13 12:54 AM, tn wrote:
...
An alternative would be to check for nans explicitly.
I think NaNs are singular unordered values that make invalid
inputs for either sort or isSorted. We should simply add an
assert to isSorted.
But sort and isSorted both allow user to provide a custom "less"
function. What if the user needs NaNs and, for example, wants to
sort them before all the other values? Then he calls
"arr.sort!((a,b) => a < b || (isnan(a) && !isnan(b)))" and the
code asserts?