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using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public static class IEnumerableTransform
{
public static IEnumerable<TOut> Transform<TOut> (this IEnumerable<int> input, EmitterFunc<TOut> rule)
{
foreach (var v in input) {
TOut output;
rule (out output);
yield return output;
}
}
public static EmitterFunc<TOut> Emit<TOut> (TOut result)
{
return delegate (out TOut output) {
output = result;
};
}
public delegate void EmitterFunc<TOut> (out TOut output);
public static int Main ()
{
IEnumerable<int> arr = new int[3];
if (!arr.Transform<char> (IEnumerableTransform.Emit<char> ('t')).SequenceEqual(new char[] { 't', 't', 't'}))
return 1;
return 0;
}
}
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