Interestingly I found that the (now GPL&#x27;d) GEM sources from Digital Research (windowing system from the 80s for x86 and 68k) also follows this capitalized-typedef convention.  It&#x27;s all WORD&#x2F;LONG&#x2F;UWORD. They even typedef void to VOID.<p>It&#x27;s excruciating on my eyes.