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POHelp - please convert this LINQ example to C++
 

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  1. POHelp - please convert this LINQ example to C++
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    <p>I'm putting together a presentation to show some of the productivity gains that I think C# may offer over C++. I've written some code in C# which I'd like to convert to C++. I don't have the time or up to date C++ to do the conversion justice, hence posting here.</p> <p>Code to convert:</p> <pre><code>using System.Collections.Generic; using System.Drawing; using System.Linq; namespace LinqTest { public class Vehicle { public int Id { get; set; } public Color Colour { get; set; } } public class Tyre { public int Id { get; set; } public int BikeId { get; set; } public int Size { get; set; } public string Brand { get; set; } } public class Car : Vehicle {} public class Bike : Vehicle {} public class Example { private readonly IList&lt;Car&gt; cars; private readonly IList&lt;Tyre&gt; bikeTyres; private readonly IList&lt;Bike&gt; bikes; public Example() { cars = new List&lt;Car&gt; { new Car {Id = 0, Colour = Color.Red}, new Car {Id = 1, Colour = Color.Blue}, new Car {Id = 2, Colour = Color.Green}, new Car {Id = 3, Colour = Color.Green} }; bikeTyres = new List&lt;Tyre&gt; { new Tyre {Id = 0, BikeId = 0, Brand = "TyreCo1", Size = 23}, new Tyre {Id = 1, BikeId = 0, Brand = "TyreCo1", Size = 23}, new Tyre {Id = 2, BikeId = 1, Brand = "TyreCo2", Size = 30}, new Tyre {Id = 3, BikeId = 1, Brand = "TyreCo2", Size = 30}, new Tyre {Id = 4, BikeId = 2, Brand = "TyreCo3", Size = 23}, new Tyre {Id = 5, BikeId = 2, Brand = "TyreCo3", Size = 23} }; bikes = new List&lt;Bike&gt; { new Bike {Id = 0, Colour = Color.Red}, new Bike {Id = 1, Colour = Color.Blue}, new Bike {Id = 2, Colour = Color.Green} }; } public IEnumerable&lt;Vehicle&gt; FindVehiclesByColour(Color colour) { var carVehicles = from car in cars where car.Colour == colour select car as Vehicle; var bikeVehicles = from bike in bikes where bike.Colour == colour select bike as Vehicle; return carVehicles.Union(bikeVehicles); } public IEnumerable&lt;Bike&gt; FindBikesByTyreSize(int size) { return (from bike in bikes join tyre in bikeTyres on bike.Id equals tyre.BikeId where tyre.Size == size select bike).Distinct(); } } } </code></pre> <p>Thanks in advance.</p>
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    1. USng5000
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    1. COI wanted to add a bounty given that the question is quite involved, but doesn't seem that I can straight away.
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    2. COWhy the down votes? Seems like a reasonable request to me and we certainly add to the body of knowledge on SO. At least point me in the direction of some C++ types/methods.
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    3. COYour question is not aiming at "adding to the body of knowledge on SO", it's aiming at getting *your* work done...
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      1. USDevSolar
 

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