Well, C hasn't been designed to be evolving and was also quite under-specified through most of its history; a hacker's delight, a tool to get things done, quick

Well, C hasn't been designed to be evolving and was also quite under-specified through most of its history; a hacker's delight, a tool to get things done, quick, but not a receipt for long-term maintainability. Given that, I'd think C did rather well.