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    <blockquote> <p>Seems like a fundamental problem with the .NET API...</p> </blockquote> <p>I don't know if I'd go that far.</p> <p>Consider almost any collection class in .NET. Chances are it has a <code>Count</code> property that returns an <code>int</code>. So this suggests the class is bounded at a size of <code>int.MaxValue</code> (2147483647). That's not really a <em>problem</em>; it's a <em>limitation</em> -- and a perfectly reasonable one, in the vast majority of scenarios.</p> <p>Anyway, what would the alternative be? There's <code>uint</code> -- but that's not CLS-compliant. Then there's <code>long</code>...</p> <p>What if <code>Length</code> returned a <code>long</code>?</p> <ol> <li>An additional 32 bits of memory would be required anywhere you wanted to know the length of a string.</li> <li>The benefit would be: we could have strings taking up billions of gigabytes of RAM. Hooray.</li> </ol> <p>Try to imagine the mind-boggling cost of some code like this:</p> <pre><code>// Lord knows how many characters string ulysses = GetUlyssesText(); // allocate an entirely new string of roughly equivalent size string schmulysses = ulysses.Replace("Ulysses", "Schmulysses"); </code></pre> <p>Basically, if you're thinking of <code>string</code> as a data structure meant to store an unlimited quantity of text, you've got unrealistic expectations. When it comes to objects of this size, it becomes questionable whether you have any need to hold them in memory at all (as opposed to hard disk).</p>
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    1. POAre C# Strings (and other .NET API's) limited to 2GB in size?
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    1. USDan Tao
    1. USDan Tao
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    1. COI don't see how it's reasonable. Since .NET defines an int to be 32 bits, that means 50 years from now...no matter what my computer can handle, .NET will be restricting me to 32-bit size collections. Sounds like a modern variation of '640Kb is enough for anyone'.
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      1. USAndrew
    2. CO@Andrew, in 50 years, you won't be programming in .NET. And in 50 years, int.MaxValue would still be a large number of objects to hold in a collection.
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      1. USAnthony Pegram
    3. CO@Andrew then create a wrapper around a multidimensional `List<>/Array` and have it return a `Int64` for `Count`
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      1. USEarlz
 

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