On Friday, 5 April 2013 at 18:00:56 UTC, bearophile wrote:
Sebastian Graf:
I wonder if there is a good way to dry up this:
I suggest to improve that code a lot.
For machineWord there is:
alias machineWord = Select!(machine == Machine.I386, uint,
ulong);
This:
(1 << 32)
Gives:
Error: shift by 32 is outside the range 0..31
Generally it's better to use named enums and final switches,
where possible.
Keep in mind built-in integral numbers have the max attribute.
Bye,
bearophile
Thanks, this shows that I didn't really try to run that example.
The Select template is helpful indeed.
Is there however some way to generate that switch with cases for
each enum member in a template, so that each case calls
<some-passed-template-func>(Machine)() instantiated with the
appropriate enum member? I know you could do it with string
mixins, but that be a hassle to implement...
Eventually, I want my code to look like
void func(Machine machine)() { ... }
switchOnEachEnumMember!func(machine);
