i used to use that same function pointer cast trick to execute bytes from memory a long time ago. you should find that it fails in most modern execution enviro

i used to use that same function pointer cast trick to execute bytes from memory a long time ago. you should find that it fails in most modern execution environments... in legacy/desktop windows you can virtualalloc things to be executable but the same is not true in the general case, and this code doesn't do that. even a long time ago (before windows 8, ios etc.) i wasn't able to just execute things on the stack or heap reliably and had to write code that explicitly allocated executable memory.