ISO/IEC 11404
collection of datatypes

ISO/IEC 11404, General Purpose Datatypes (GPD), are a collection of datatypes defined independently of any particular programming language or implementation. These datatypes can be used to describe interfaces to existing libraries without having to specify the language (such as Fortran or C).
The first edition of this standard was published in 1996 under the title "Language-independent datatypes". The standard was revised by the responsible ISO sub-committee (JTC1/SC22 - Information Technology - Programming languages). The revised version has the new title "General Purpose Datatypes".
External links
ISO/IEC 11404:2007, complete text of General purpose datatypes.
Begin with the source’s own compact description: “ISO/IEC 11404” is collection of datatypes. The dossier treats that line as a proposition to test through datatypes, not as a finished interpretation.
Why this record matters
The phrase “collection of datatypes” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 10, 2026. The linked authority identifier is Q5974063. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1996 and 2007.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “ISO/IEC 11404”, its source revision and the description used here.
- Expand the search: follow ISO/IEC 11404 primary sources, ISO/IEC 11404 archive and datatypes research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “ISO/IEC 11404”?
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- Which cited source is closest to the event, object or claim?
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This entry incorporates text from “ISO/IEC 11404” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.