On Tuesday, 2 October 2018 at 13:24:09 UTC, Basile B. wrote:
The problem is the NaN madness.
Since several values are NaN there's this strange stuff:
void main()
{
import std.stdio;
import std.math : isNaN;
double d;
writeln(d.init); // nan
writeln(d); // nan
writeln(d.nan); // nan
assert(d.isNaN);
assert(d == d.nan); // fails
assert(d == d.init); // fails
}
the last assert is just crazy.
OK, so changing the example from
// .init a special built-in property that
// returns the initial value of type.
assert(vec.x == double.init);
to
import std.math : isNaN;
assert(vec.x.isNaN);
doesn't cause the crash. Although I'm a bit puzzled still, I
thought (coming from Python) that when you ran the unittest
version it would report which tests passed and which failed, not
run through main().
