string-int[] array

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On Sunday, 8 March 2015 at 18:38:02 UTC, Dennis Ritchie wrote:
> On Sunday, 8 March 2015 at 18:18:15 UTC, Baz wrote:
>> import std.stdio;
>> import std.typecons;
>>
>> alias T = Tuple!(string, int);
>>
>> void main(string[] args)
>> {
>>    T[] tarr;
>>    tarr ~= T("a",65);
>>    tarr ~= T("b",66);
>>    writeln(tarr);
>> }
>> ----
>>
>>> [Tuple!(string, int)("a", 65), Tuple!(string, int)("b", 66)]
>
> Thanks, will do.

It might be better to use std.variant.Algebraic. An array of 
tuples is wasteful of memory as you only need one or the other.

import std.variant;

alias IntOrStr = Algebraic!(int, string);

IntOrStr[] makeIntOrStrArray(T...)(T vals)
{
	import std.algorithm;
	import std.array;
	
	auto result = new IntOrStr[](T.length);
	foreach (i, val; vals)
	{
		result[i] = IntOrStr(val);
	}
	
	return result;
}

void main()
{
	IntOrStr[] arr = makeIntOrStrArray(4, "five");
}