# jflaherty/ptrtut13

A TUTORIAL ON POINTERS AND ARRAYS IN C

Repository: https://github.com/jflaherty/ptrtut13
Canonical: https://ross.abutalabs.com/products/ptrtut13
Language: HTML
License: GPL-3.0
License Family: copyleft
Last push: 2023-09-02T21:27:12+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2714, "days_push": 1096, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1419, forks 100 (observed 2026-08-28T04:04:40.358547+00:00)

## What it is
A preserved copy of Ted Jensen's classic tutorial 'A Tutorial on Pointers and Arrays in C', hosted on GitHub after the original website went down. It is available as HTML, Markdown, and PDF pages, with ongoing cleanup to update references and code to the C11 standard.

## Use cases
- learn how pointers work in C
- understand the relationship between pointers and arrays
- find a beginner-friendly explanation of C pointer arithmetic
- study C memory and addressing concepts
- get a downloadable offline C pointers tutorial

## When to choose
- you want a well-regarded, in-depth written explanation of C pointers and arrays
- you prefer reading a structured tutorial over video content
- you need an offline/downloadable copy of the material

## When to avoid
- you need interactive exercises or an up-to-date modern C course
- you are looking for tutorials on C++ or other languages
- you want content actively maintained with frequent updates

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation
- domain: programming-languages, tutorials, education
- platform: cross-platform
- tags: c-language, pointers, arrays, tutorial, preserved-content

## Member repositories
- jflaherty/ptrtut13 (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:40.358547+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:37:53.508665+00:00, confidence not recorded.
  - readme: https://github.com/jflaherty/ptrtut13 (fetched 2026-08-28T04:04:40.358547+00:00, sha d44a2843a375)
- Data as of 2026-08-30T08:39:29.467469+00:00.