Visual studio equivalent for attribute ((warn_unused_result))

Question

Considering following code:

struct MyType{};

MyType myFunction() __attribute__ ((warn_unused_result))
{
    return MyType{};
}

int main()
{
    myFunction();
    auto storMyType = myFunction();
}

Not storing the return value of myFunction is a logical error and I want to have a compilation error on all compilers. Is there any equivalent for Visual Studio 2013?

possible duplicate of [MSVC equivalent of \_\_attribute\_\_ ((warn\_unused\_result))?](http://stackoverflow.com/questions/4226308/msvc-equivalent-of-attribute-warn-unused-result) — OrangeDog, Nov 10 '14 at 11:20

score 2 · Accepted Answer · answered Nov 10 '14 at 11:15

The annotation is _Check_return_

Annotates a return value and states that the caller should inspect it. The checker reports an error if the function is called in a void context.

However, I believe SAL annotations are only available in the Premium and Ultimate versions of Visual Studio.

MSDN: Annotating Function Behavior

Visual studio equivalent for __attribute__ ((warn_unused_result))

1 Answers1

Visual studio equivalent for attribute ((warn_unused_result))