On Monday, 5 June 2017 at 14:23:34 UTC, Mike Parker wrote:
The crowd-edited (?) blog post exploring some of D's
compile-time features is now live. Thanks again to everyone who
helped out with it.
The blog:
https://dlang.org/blog/2017/06/05/compile-time-sort-in-d/
Reddit:
https://www.reddit.com/r/programming/comments/6fefdg/compiletime_sort_in_d/
This is a great article, Mike!
At the end I expected a reference to D's great template
constraints [1], maybe it's still worth adding sth. like this to
show how amazingly useful CTFE is?
auto myRandomEngine(ulong m, ulong a, ulong c)(ulong seed)
if (properLinearCongruentialParameters!(m, a, c))
{
return seed;
}
void main()
{
static assert(!__traits(compiles, myRandomEngine!(1, 2,
3)(42)));
myRandomEngine!(1UL << 32, 1664525, 1013904223)(42);
}
Or alternatively if you don't want to rewrite
properLinearCongruentialParameters e.g.
auto myRandomEngine(ulong m, ulong a, ulong c)(ulong seed)
if (pLCP!(m, a, c))
{
return seed;
}
template pLCP(ulong m, ulong a, ulong c) {
enum pLCP = properLinearCongruentialParameters(m, a, c);
}
[1] https://dlang.org/spec/template.html#template_constraints
