PointCloudLibrary/pcl

Replace header guards of type `#ifndef` with a `#pragma once`

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#3,774 opened on Mar 22, 2020

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effort: lowgood first issuehelp wantedkind: todo

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Description

Replace #ifndef header guard with a #pragma once

Originally posted by @kunaltyagi in https://github.com/_render_node/MDIzOlB1bGxSZXF1ZXN0UmV2aWV3VGhyZWFkMjQ0Nzg4MDI0OnYy/pull_request_review_threads/discussion

Maybe there's a clang-tidy flag to do this.

Contributor guide

Research direction
Search for all header files using #ifndef guards and replace them with #pragma once. Optionally, use clang tidy's 'modernize use pragma once' check to automate.
Tech stack
cpp
Domain
backend
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitC++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85