--- title: Is Objective-C BOOL a boolean type? It depends | daily.dev description: This article explores the Objective-C BOOL type and how it is defined on different Apple platforms. It discusses the differences in defining BOOL on Apple... canonical: https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Is Objective-C BOOL a boolean type? It depends | daily.dev og:description: This article explores the Objective-C BOOL type and how it is defined on different Apple platforms. It discusses the differences in defining BOOL on Apple... og:url: https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv og:image: https://api.daily.dev/og/posts/4HsyYNhuv.png og:image:alt: Is Objective-C BOOL a boolean type? It depends og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Is Objective-C BOOL a boolean type? It depends **[Hacker News](https://daily.dev/sources/hn)** · 11 min read · 0 upvotes · 0 comments ## Summary This article explores the Objective-C BOOL type and how it is defined on different Apple platforms. It discusses the differences in defining BOOL on Apple Silicon and Intel Macs and provides examples of unexpected behavior. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#objective-c](https://daily.dev/tags/objective-c) [View this post on daily.dev](https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Is Objective-C BOOL a boolean type? It depends","url":"https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv"},"datePublished":"2024-01-10T18:20:19.673Z","dateModified":"2024-01-27T02:21:58.025Z","description":"This article explores the Objective-C BOOL type and how it is defined on different Apple platforms. It discusses the differences in defining BOOL on Apple...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3b0b4312c27e30fdb7c70a14de403261?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3b0b4312c27e30fdb7c70a14de403261?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"Hacker News","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hacker News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hn","url":"https://daily.dev/sources/hn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/is-objective-c-bool-a-boolean-type-it-depends-4hsyynhuv","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"general-programming,objective-c","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker News","item":"https://daily.dev/sources/hn"},{"@type":"ListItem","position":3,"name":"Is Objective-C BOOL a boolean type? It depends"}]} ```