If you do know your compiler and your CPU (singular), you're probably not really programming C. Conversely, if you maintain software that compiles on a bunch o

If you do know your compiler and your CPU (singular), you're probably not really programming C. Conversely, if you maintain software that compiles on a bunch of compilers, operating systems and architectures (particularly little endian + big endian, 32 bit + 64 bit), then it's probably written in something rather like C. A lot of people do this.