sentinel value

in-band data value that must be handled specially by computer code
Thing programming_anti_pattern Q71826074
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sentinel value

Summary

sentinel value is a programming anti-pattern[1]. It draws 183 Wikipedia views per month (programming_anti_pattern category, ranking #4 of 10).[2]

Key Facts

  • sentinel value's instance of is recorded as programming anti-pattern[3].
  • sentinel value's subclass of is recorded as value[4].
  • sentinel value's subclass of is recorded as special case[5].
  • sentinel value's subclass of is recorded as dummy data[6].
  • sentinel value's has use is recorded as in-band signaling[7].
  • sentinel value's Freebase ID is recorded as /m/097vbz[8].
  • sentinel value's described at URL is recorded as https://amazingalgorithms.com/definitions/sentinel-value/[9].
  • sentinel value's described at URL is recorded as https://www.pythonpool.com/sentinel-value-python/[10].
  • sentinel value's described at URL is recorded as https://www.techopedia.com/definition/sentinel-value[11].
  • sentinel value's described at URL is recorded as https://peps.python.org/pep-0661/[12].
  • sentinel value's described at URL is recorded as https://www.studyplan.dev/pro-cpp/ranges-sentinels[13].
  • sentinel value's described at URL is recorded as https://python-patterns.guide/python/sentinel-object/[14].
  • sentinel value's described at URL is recorded as https://josh-pius.github.io/rwxjosh/Sentinel-Value-(Computer-Science)[15].
  • sentinel value's has effect is recorded as semipredicate problem[16].
  • sentinel value's Microsoft Academic ID is recorded as 117683630[17].

Why It Matters

sentinel value draws 183 Wikipedia views per month (programming_anti_pattern category, ranking #4 of 10).[2]

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] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.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). sentinel value. Retrieved May 3, 2026, from https://4ort.xyz/entity/sentinel-value
MLA “sentinel value.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/sentinel-value.
BibTeX @misc{4ortxyz_sentinel-value_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{sentinel value}}, year = {2026}, url = {https://4ort.xyz/entity/sentinel-value}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): sentinel value — https://4ort.xyz/entity/sentinel-value (retrieved 2026-05-03)

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