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hkBattousai

[C#] Array in struct

4 posts in this topic

[CODE]struct Fruits { char Apple; bool Cherry; int Orange[100]; // Error here long Melon; }[/CODE] The struct above well works in C++, but gives error in C#. How can I write C# version of this code? Error given :[QUOTE]Error 1 Syntax error, bad array declarator. To declare a managed array the rank specifier precedes the variable's identifier. To declare a fixed size buffer field, use the fixed keyword before the field type. Error 2 Array size cannot be specified in a variable declaration (try initializing with a 'new' expression)[/QUOTE]
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I asked this question to some other forums about three or four weeks ago, no answer yet.
Again I asked it to one of my friend who claims to have a certificate in C#, he said that I must use array lists and it is a very difficult thing to implement.

But you answered just a few minutes after I asked this question, and it works alright. Thank you very much!
This is what I like about GameDev.

By the way my [QUOTE] and [CODE] blocks are not working, is that a temporary problem? Also advanced reply mode is disabled. How can I reactivate it?
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It should be noted that that allocates an array on the managed heap. There is no method to allocate managed arrays on the stack.

Use lowercase letters, [ quote] and [ code]
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If you need an array in a struct for interop (like passing out to a DLL or something) you can do it like this:

public unsafe struct StructWithAnArray
{
public fixed int ArrayField[100];
}

You could only use this in an unsafe context and the type of the array can only be a native numeric value type (int, double, float, etc). ArrayField isn't an actual Array so you can't pass it to anything expecting a parameter of type System.Array and it doesn't have any properties like Length. Within your C# code, ArrayField is of type int* but sizeof(StructWithArray) will return 400.

I've never had occasion to actually do this so I have no idea what the pitfalls might be.
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