Also, the quality of the library providing stdio or streams can vary quite a bit. I know a few platforms where you're much better off never calling this stuff (

Also, the quality of the library providing stdio or streams can vary quite a bit. I know a few platforms where you're much better off never calling this stuff (unless it's for quick bringup or other throwaway code) because the folks writing that layer obviously hated their day jobs and wanted to write an OS instead . . . so they did.