About IBM z/OS XL C/C++

The XL C/C++ feature of the IBM® z/OS® licensed program provides support for C and C++ application development on the z/OS platform.

z/OS XL C/C++ includes:

A C compiler (referred to as the z/OS XL C compiler)
A C++ compiler (referred to as the z/OS XL C++ compiler)
Performance Analyzer host component, which supports the IBM C/C++ Productivity Tools for IBM OS/390® product
A set of utilities for C/C++ application development

The z/OS XL C/C++ compiler works with the mainframe interactive IBM Debug Tool product and IBM Rational® Developer for System z®, integrated with IBM Debug Tool for z/OS and IBM Debug Tool Utilities and Advanced Functions for z/OS.

IBM offers the C and C++ compilers on other platforms, such as the IBM AIX®, Linux, IBM OS/400®, and IBM z/VM® operating systems. The C compiler is also available on the IBM VSE/ESA platform.