To order the compiler to inline, use a macro. This comes up exceedingly rarely, for example: the relocation engine itself can't make function calls.

If you're hitting a point where you think you need this, declare inline, and crank up the optimization levels. If you are on 2025 hardware getting to the point where inline this function the compiler won't at aggressive speed optimizations I want to know what on earth you are doing to get to that point.