It's commonly optimized out, yes. Rule of thumb is typically to pass pointers to a struct if it gets fairly large and complex. Even then, you should really prof

It's commonly optimized out, yes. Rule of thumb is typically to pass pointers to a struct if it gets fairly large and complex. Even then, you should really profile to see that the becomes a bottleneck, compilers inline aggressively and a pointer might defeat some other optimizations down the call chain.