ISO/IEC TR 19768:2007 specifies a series of extensions to the standard library for the programming language C++, as specified by ISO/IEC 14882, in order to build more widespread existing practice for an expanded C++ standard library. Some of the components in ISO/IEC TR 19768:2007 could be considered for standardization in a future version of C++. The specific classes of extensions specified in ISO/IEC TR 19768:2007 are as follows: general utilities such as reference-counted pointers; functional programming; facilities for compile-time type queries; enhanced support for numerical computation; hash tables and other additional container classes; regular expression processing; improved capability with the programming language C, as specified by ISO/IEC 9899.