 Later versions of PCC, known within Bell Labs as "QCC" and "RCC," supported other target architecture models.The language that PCC implemented was an extended version of K&R C that Bjarne Stroustrup has called "Classic C", incorporating the codice_1 return type (for functions that don't return any value), enumerations and structure assignment.A new version of pcc, based on the original by Steve Johnson, is now maintained by Anders Magnusson.