compiling it with something that makes it memory-safe Isn't it true that there is a bit more work to do to a program to make it memory safe than just recompili

compiling it with something that makes it memory-safe Isn't it true that there is a bit more work to do to a program to make it memory safe than just recompiling? Like if the original is in C, recompiling it in C++ won't whisk away unsafe memory access without significant architectural rework, no?