What's the prefered way to store binary data in .NET?
I've tried this:
byte data __gc [] = __gc new byte [100];
And got this error:
error C2726: '__gc new' may only be used to create an object with managed type
Is there a way to have managed array of bytes?
Are you using Managed C++ or C++/CLI? (I can see that Jon Skeet edited the question to add C++/CLI to the title, but to me it looks like you are actually using Managed C++).
But anyway:
In Managed C++ you would do it like this:
Byte data __gc [] = new Byte __gc [100];
In C++/CLI it looks like this:
cli::array<unsigned char>^ data = gcnew cli::array<unsigned char>(100);
CodeProject: Arrays in C++/CLI
As far as I know '__gc new' syntax is deprecated, try following:
cli::array<byte>^ data = gcnew cli::array<byte>(100);
I noted that you're having problems with cli namespace. Read about this namespace on MSDN to resolve your issues.
I don't know the preferred way of doing this. But if you only want it compiled, the following are working code from my C++/CLI CLRConsole project from my machine.
#include "stdafx.h"
using namespace System;
int main(array<System::String ^> ^args)
{
cli::array<System::Byte^>^ a =
gcnew cli::array<System::Byte^>(101);
a[1] = (unsigned char)124;
cli::array<unsigned char>^ b =
gcnew cli::array<unsigned char>(102);
b[1] = (unsigned char)211;
Console::WriteLine(a->Length);
Console::WriteLine(b->Length);
Console::WriteLine(a[1] + " : " + b[1]);
return 0;
}
Output:
101
102
124 : 211
a is managed array of managed byte. And b is managed array of unsigned char. C++ seems not to have byte data type built in.
