1	ISO/IEC 9899:1990, AKA ANSI X3.159-1989, ANSI C, ISO C, C89, C90
199409	ISO/IEC 9899:1990/AMD1:1995, AKA C94, C95
199901	ISO/IEC 9899:1999, AKA C99
201112	ISO/IEC 9899:2011, AKA C11
201710	ISO/IEC 9899:2018, AKA C18