Yes, C across AIX, Suns, Silicon Graphics, whatever those HP ones were, and others. Platform differences were common, bugs rare because many had been before me and they could always be worked around; I didn't have to fix a C compiler. When writing a compiler the aim is to fix the compiler.

This isn't getting us anywhere. We disagree. I value the opinion of that lot given their many decades of experience. I used to have your opinion, based on textbooks. They've made a good point, one I can see has considered thought behind it.