Supports high-order transformations, which are optimizations that improve performance for loops; also support OPTIMIZE(3) or OPT(3), the compiler's highest and most aggressive level of optimization.
Conforms to the ISO/IEC 9899:1999 international standard (C99), the ANSI/ISO 1998 C++ standard, and a standards-conforming C compiler and includes the C++ Standard Library.
Supports industry standards to simplify the porting of applications to z/VM from both IBM and non-IBM platforms.