On Monday, 1 September 2025 at 13:37:11 UTC, user1234 wrote:
On Monday, 1 September 2025 at 12:20:02 UTC, Kapendev wrote:
Insane way to do things:
```d
struct Matrix(R, C, T, bool canFly, bool isCute) if
((isNumberType!T || isMathType!T) && isGoodType!T &&
isMagicType!T) {
static if (canFly) {
this(Blah blah) {
// Blah blah...
}
} else static if (isCute) {
this(Blah blah) {
// Blah blah...
}
} else {
// Blah blah...
}
// Just more template hell...
}
```
This example is actually an issue very specific to
constructors, which cannot be overloaded if templatized.
Non-ctor functions can be both overloaded and templatized.
I think the D style to prevent that is to use "static
factories", i.e thanks to a global function you prevent the
problem of having both template constraints and static `ifs`.
Wrong, now I remember what is the issue I thought about... it is
that you cannot explicitly instantiate a templatized ctor... as
there are not named (they is the workaround sub mentioned
however).
