sjolsen did a good job of illustrating what I meant https://news.ycombinator.com/item?id=8375341 Improvements on his version would be to make everything const and the lambda inputs explicit.

    AwesomenessT largerFunction(Foo1 foo1, Foo2 foo2)
    {
        const ResultT1 result1 = [foo1] {
            const Bar bar = barFromFoo1(foo1);
            const Baz baz = bar.makeBaz();
            return baz.awesome();
        } ();

        const ResultT2 result2 = [foo2] {
            const Bar bar = barFromFoo2(foo2);
            return bar.awesome();
        } ();

        return result1.howAwesome(result2);
    }

It's my understanding that compilers are already surprisingly good at optimizing out local lambdas. I recall a demo from Herb Sutter where std::for_each(someLambda) was faster than a classic for(int i;i<100000;i++) loop with a trivial body because the for_each internally unrolled the loop and the lamdba body was therefore inlined as unrolled.