# ISO/IEC TS 19568:2017 — Withdrawn and superseded ISO standards For ISO/IEC TS 19568:2017, item title is Programming Languages — C++ Extensions for Library Fundamentals; status code is 9599; successor is ISO/IEC WD TS 19568 | ISO/IEC TS 19568:2024; withdrawn / published date is 2017-03-30, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC TS 19568:2017 _(verified: appears in the quote below)_ - **Item title:** Programming Languages — C++ Extensions for Library Fundamentals _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC WD TS 19568 | ISO/IEC TS 19568:2024 - **Withdrawn / published date:** 2017-03-30 _(verified: appears in the quote below)_ ## What the source says > 70587,TS,,ISO/IEC TS 19568:2017,Programming Languages — C++ Extensions for Library Fundamentals,Langages de programmation — Extensions C++ pour la bibliothèque fondamentaux,2017-03-30,2,['35.060'],ISO/IEC JTC 1/SC 22,9599,[65238],"[79359,86293]",['en'],115,"

ISO/IEC TS 19568:2017 describes extensions to the C++ Standard Library (1.2). These extensions are classes and functions that are likely to be used widely within a program and/or on the interface boundaries between libraries written by different organizations.

ISO/IEC TS 19568:2017 is non-normative. Some of the library components in this technical specification may be considered for standardization in a future version of C++, but ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).