There is vastly more old C code than new, and it didn't target the x64 or ARM architectures it's running on now. Where it wasn't portable, that was a defect that had to be fixed.
My first job was a 4GL targeting customers running DOS on the 80286, complete with runtime linking. 100% of that work has been abandoned due to incompatibility. It contributed nothing to the profession beyond what I personally learned.
My first job was a 4GL targeting customers running DOS on the 80286, complete with runtime linking. 100% of that work has been abandoned due to incompatibility. It contributed nothing to the profession beyond what I personally learned.