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129 changed files with 14 additions and 15 deletions
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import std.stdio;
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@property bool empty(T)(T[] a) { return a.length == 0; }
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@property ref T front(T)(T[] a) { return a[0]; }
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void popFront(T)(ref T[] a) { a = a[1 .. $]; }
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R find(R, T)(R haystack, T needle)
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if (is(typeof(haystack.front != needle) == bool))
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{
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while (!haystack.empty && haystack.front != needle)
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{
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haystack.popFront();
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}
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return haystack;
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}
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unittest
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{
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writeln(find([1, 2, 3], 2.0));
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assert(find([1, 2, 3], 1.0));
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}
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