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_FORTIFY_SOURCE

preprocessor flag to use fortified implentations
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_FORTIFY_SOURCE

Summary

_FORTIFY_SOURCE is a runtime error detection[1]. _FORTIFY_SOURCE is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • _FORTIFY_SOURCE's instance of is recorded as runtime error detection[3].
  • _FORTIFY_SOURCE is part of GNU C Library[4].
  • _FORTIFY_SOURCE is part of Bionic[5].
  • _FORTIFY_SOURCE is part of Newlib[6].
  • 2004 marks the founding of _FORTIFY_SOURCE[7].
  • _FORTIFY_SOURCE's described at URL is recorded as https://maskray.me/blog/2022-11-06-fortify-source#more[8].
  • _FORTIFY_SOURCE's compatible with is recorded as GNU Compiler Collection[9].
  • _FORTIFY_SOURCE's compatible with is recorded as LLVM[10].

Body

Definition and Type

_FORTIFY_SOURCE's instance of is recorded as runtime error detection[3].

Origins

2004 marks the founding of _FORTIFY_SOURCE[7].

Use and Application

Part of include GNU C Library[4], a C POSIX library[11], founded in 1987[12]; Bionic[5], a C POSIX library[13]; and Newlib[6], a free software[14].

Why It Matters

_FORTIFY_SOURCE is known by 3 alternative names across languages and contexts.[2]

Related Entities

runtime error detection

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . developers.redhat.com. developers.redhat.com. Provenance: wikidata.org.

Inline context (facts about related entities)

  1. [11] ↑ . Wikidata. wikidata.org. → on this site
  2. [12] ↑ . Wikidata. wikidata.org. → on this site
  3. [13] ↑ . Wikidata. wikidata.org. → on this site
  4. [14] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). _FORTIFY_SOURCE. Retrieved May 3, 2026, from https://4ort.xyz/entity/fortify-source
MLA “_FORTIFY_SOURCE.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/fortify-source.
BibTeX @misc{4ortxyz_fortify-source_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{_FORTIFY_SOURCE}}, year = {2026}, url = {https://4ort.xyz/entity/fortify-source}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): _FORTIFY_SOURCE — https://4ort.xyz/entity/fortify-source (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 16d ago · Artoria2e5 · 2026-08-03 view diff on Wikidata ↗
    Instance of → runtime error detection
    Aliases → —
    Compatible with → GNU Compiler Collection, LLVM
    Inception → —
    + 7 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P973]]: https://developers.redhat.com/articles/2023/02/06/how-improve-application-security-using-fortifysource3"
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