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C6505

Visual Studio 2012

warning C6505: invalid annotation: MustCheck property may not be used on values of void type

This warning indicated that MustCheck property was used on a void data type. You cannot use MustCheck property on void type. Either remove the MustCheck property or use another data type.

The following code generates this warning:

C++
Copy 
#include <sal.h>
_Must_inspect_result_ void f()
{
    //Code ...
}

To correct this warning, use the following code:

C++
Copy 
#include <sal.h>
_Must_inspect_result_ char* f()
{
    char *str ="Hello World";
    //Code ...
    return str;
}
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