Class libraries

As of z/OS® V1R12 XL C/C++, the following thread-safe class libraries are used:

Standard C++ Library, including the Standard Template Library (STL), and other library features of Programming languages - C++ (ISO/IEC 14882:1998) and Programming languages - C++ (ISO/IEC 14882:2003(E))
UNIX System Laboratories (USL) C++ Language System Release I/O Stream and Complex Mathematics Class Libraries

For new code and enhancements to existing applications, the Standard C++ Library should be used. The Standard C++ Library includes the following:

Stream classes for performing input and output (I/O) operations
The Standard C++ Complex Mathematics Library for manipulating complex numbers
The Standard Template Library (STL) which is composed of C++ template-based algorithms, container classes, iterators, localization objects, and the string class

Note: As of z/OS V1R5, all application development using the C/C++ IBM® Open Class® Library (Application Support Class and Collection Class Libraries) is not supported. As of z/OS V1R9, the execution of applications using the C/C++ IBM Open Class Library is not supported.