I’ve recently upgraded my project from Visual Studio 2008 to Visual Studio 2010. By

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Editorial Team

Asked: May 15, 20262026-05-15T00:30:06+00:00 2026-05-15T00:30:06+00:00

I’ve recently upgraded my project from Visual Studio 2008 to Visual Studio 2010. By

0

I’ve recently upgraded my project from Visual Studio 2008 to Visual Studio 2010.

By enabling Code Analysis and compiling in Release, I’m getting warning CA1806: Do not ignore method results.

I’ve managed to reduce the code that produces the warning to this code:

.h file:

public ref class Foo
{
public:
    void Bar();
};

.cpp file:

void Foo::Bar()
{
    try
    {
    }
    catch (const std::exception&) // here I get the warning
    {
    }
}

the warning:

CA1806 : Microsoft.Usage :
‘Foo::Bar(void)’ calls
‘Global::__CxxRegisterExceptionObject(void*,
void*)’ but does not use the HRESULT
or error code that the method returns.
This could lead to unexpected behavior
in error conditions or low-resource
situations. Use the result in a
conditional statement, assign the
result to a variable, or pass it as an
argument to another method.

If I try to use the exception value or do catch(...) the warning still appears. If I catch managed exceptions instead or compile in Debug I don’t get the warning.

Why do I get this warning?

UPDATE

I’ve decided to open a bug report on Microsoft Connect.