In my prior post we briefly talked about how the compiler unrolls a variadic template and we needed to provide the end-point function to stop that iteration, lets take a closer look at how the compiler does this unrolling.
The impact this has on your debug build is critical, and I demonstrate that you can see the unrolling of numeric functions (such as summation) but then in release the compiler is smart enough to optimize that all away and use a constant. Understanding when this is happening is a crucial lesson, as we then see the action of a repetitive string output.
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