Show me a program that has no bugs and I'll show you a program that does nothing at all!
Even most Hello Worlds don't check the pipe was written to correctly. And now we get into "well actually that's technically not a bug because it is not in the spec" and if we're finding the need to split that hair, we can hardly be talking about some mythically perfect software.
Even most Hello Worlds don't check the pipe was written to correctly. And now we get into "well actually that's technically not a bug because it is not in the spec" and if we're finding the need to split that hair, we can hardly be talking about some mythically perfect software.