On Friday, 9 February 2018 at 16:28:50 UTC, Nicholas Wilson wrote:
On Friday, 9 February 2018 at 15:50:24 UTC, Ralph Doncaster wrote:
Is there a way I can make a function that takes an array of any type but only of a specific size in bytes?


With a template that constrains the types size:

void foo(T)(T t) if (T.sizeof == 12)
{
    //...
}

alternately reject incorrect values at runtime

void foo(ubyte[] t)
in
{
    assert(t.length == 12);
}
do
{
    //...
}

Thanks. That's what I thought. If I stick with using D, I'll probably go with the runtime check.

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