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use nullptr in example/implicit_graph.cpp - #666

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andreacassioli:use-nullptr-example-implicit-graph-cpp
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andreacassioli wants to merge 1 commit into
boostorg:developfrom
andreacassioli:use-nullptr-example-implicit-graph-cpp

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@andreacassioli

@andreacassioli andreacassioli commented Oct 23, 2026 •

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Important

New algorithms and API additions need a design issue first. Such a PR is not reviewed until an issue has settled the API and frozen the scope. PRs whose scope grows under review go stale. See How To Contribute an Algorithm.

Motivation

Part of #593

What this PR does

use nullptr in example/implicit_graph.cpp instead of NULL

Before submitting

  • I searched for an existing PR or issue covering the same change.
  • This PR targets the develop branch.
  • My contribution is licensed under the Boost Software License 1.0.

Kind of change

Tick exactly one. Each kind is reviewed differently, so mixing them in one PR makes the diff difficult to review (why).

  • Reformat (layout only, no token added or removed)
  • Refactor (no observable behavior change)
  • Behavior change (observable to users of the library)
  • No code change (documentation, build, CI, or tooling)

Change category

  • Bug fix
  • New algorithm or API addition
  • Deprecation or removal
  • Performance
  • Tests
  • Documentation
  • Build, CI, or tooling
  • Other (specify below)

@andreacassioli andreacassioli changed the title use nullptr use nullptr in example/implicit_graph.cpp Oct 23, 2026
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Boost dependency footprint vs develop (auto-generated).
PR run 39986023988 vs develop run 39949899700 (43e6bcea20).

Header-inclusion weights (graph files pulling each direct dependency in):

No header-inclusion-weight changes.

Transitive Boost modules: 47 → 47 (0)

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codecov Bot commented Oct 23, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

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Compiler-warning counts vs develop (auto-generated).
PR run 39986023440 vs develop run 39949899676 (43e6bcea20).

Job Baseline After Delta
macos (clang, 14) 256 256 0
macos (clang, 17) 255 255 0
macos (clang, 20) 255 255 0
ubuntu (clang-19, 14) 256 256 0
ubuntu (clang-19, 17) 255 255 0
ubuntu (clang-19, 20) 255 255 0
ubuntu (clang-19, 23) 255 255 0
ubuntu (gcc-14, 14) 352 352 0
ubuntu (gcc-14, 17) 348 348 0
ubuntu (gcc-14, 20) 348 348 0
ubuntu (gcc-14, 23) 348 348 0
windows_msvc_14_3 (msvc-14.3) 961 961 0

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