Simple Question - Passing Arrays to Functions

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Rich - 25 Feb 2007 14:22 GMT

I need to pass an array from C# to a managed C++ function (that will
in turn call unmanaged C code). My knowledge of managed C++ syntax is
limited (obviously). This needs to be a reference parameter so the
function can change the contents of the array and give it back to the
caller.

How should I declare this array parameter in the managed C++ function?

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David Anton - 25 Feb 2007 15:10 GMT

By 'managed' do you mean C++/CLI?
If so, then the following example accepts an integer array by ref:
void Foo(array<int> ^%ThisArray)
{
}
But, unless you are changing the array reference, the following will do:
void Foo(array<int> ^ThisArray)
{
}
You do not have to pass by ref if just changing the contents of an array
since the array reference is not changing.

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> I need to pass an array from C# to a managed C++ function (that will
> in turn call unmanaged C code). My knowledge of managed C++ syntax is
[quoted text clipped - 3 lines]
>
> How should I declare this array parameter in the managed C++ function?

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Rich - 25 Feb 2007 15:45 GMT

On Feb 25, 8:10 am, David Anton <DavidAn...@discussions.microsoft.com>
wrote:

> By 'managed' do you mean C++/CLI?
> If so, then the following example accepts an integer array by ref:
[quoted text clipped - 23 lines]
>
> - Show quoted text -

PERFECT - That is exactly what I needed. Thanks very much!

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Simple Question - Passing Arrays to Functions

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