1 This Technical Report describes extensions to the C++ standard library that is described in the International Standard for the C++ programming language [14].

2 This Technical Report is non-normative. Some of the library components in this Technical Report may be considered for standardization in a future version of C++, but they are not currently part of any C++ standard. Some of the components in this Technical Report may never be standardized, and others may be standardized in a substantially changed form.

3 The goal of this Technical Report is to build more widespread existing practice for an expanded C++ standard library. It gives advice on extensions to those vendors who wish to provide them.

1.1 Relation to C++ Standard Library Introduction [tr.description]

1 Unless otherwise specified, the whole of the ISO C++ Standard Library introduction [lib.library] is included in this Technical Report by reference.