June 13, 2011 Re: simple syntax issue with template | ||||
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Attachments:
| > I'm trying to create 2 extra method for arrays ("range" would be
> better, though I don't quite understand what is a "range")
> Although I have some indecipherable (to me) compiler error...
>
> What's wrong with the code below?
> ==================
> import std.algorithm;
>
> public:
>
> void remove(T)(ref T[] array, T element)
> {
> auto index = array.countUntil!("a == b", T[], T)(array, element);
> removeAt(index);
> }
>
> void removeAt(T)(ref T[] array, sizediff_t index)
> {
> if(index < 0 || index >= array.length)
> return;
> array.replaceInPlace(index, index + 1, []);
> }
>
>
> unittest
> {
> auto a = [1, 3, 4];
> a.remove(3);
> assert(a == [1, 4]);
> }
> ======================
Hi Lloyd,
why not just use the built in functionality of arrays?
//----------------------
import std.stdio;
void main() {
auto a = [1, 2, 3, 4, 5, 6, 7, 8];
remove(a, 3);
foreach (i; a) {
write(i, " ");
}
writeln("");
}
void remove(T) (ref T[] myarray, int element) {
auto front = myarray[0 .. (element -1)];
auto back = myarray[element .. $];
myarray = front ~ back;
// or simply: myarray = myarray[0 .. (element - 1)] ~ myarray[element ..
$];
}
//----------------------
Josh
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