--- title: Iterators are also part of the C++ zero cost abstractions description: A deep dive into C++ zero-cost abstractions using a real-world microkernel memory mapping problem. The post walks through capability range descriptors used in... canonical: https://daily.dev/posts/iterators-are-also-part-of-the-c-zero-cost-abstractions-2xtm5ikvb twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Iterators are also part of the C++ zero cost abstractions | daily.dev og:description: A deep dive into C++ zero-cost abstractions using a real-world microkernel memory mapping problem. The post walks through capability range descriptors used in... og:url: https://daily.dev/posts/iterators-are-also-part-of-the-c-zero-cost-abstractions-2xtm5ikvb og:image: https://api.daily.dev/og/posts/2xtM5IkvB.png og:image:alt: Iterators are also part of the C++ zero cost abstractions 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. # Iterators are also part of the C++ zero cost abstractions **[Jacek Galowicz](https://daily.dev/sources/galowicz)** · 14 min read · 0 upvotes · 0 comments ## Summary A deep dive into C++ zero-cost abstractions using a real-world microkernel memory mapping problem. The post walks through capability range descriptors used in microkernels, shows how repetitive low-level math can be encapsulated in a custom iterator, and proves via Godbolt assembly comparison that the iterator abstraction compiles to identical (or fewer) assembly instructions as the raw loop version. The conclusion challenges the common low-level hacker argument that abstractions are too costly for kernel/embedded code. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Structured iteration](https://daily.dev/posts/structured-iteration-hri4jxsmi) · C\+\+ · 3 upvotes · 1 comments - [Structured iteration](https://daily.dev/posts/structured-iteration-0qdbtyri7) · Andrzej's C\+\+ blog · 0 upvotes · 0 comments --- Tags: [#c++](https://daily.dev/tags/c++), [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/iterators-are-also-part-of-the-c-zero-cost-abstractions-2xtm5ikvb) ```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":"Iterators are also part of the C++ zero cost abstractions","url":"https://daily.dev/posts/iterators-are-also-part-of-the-c-zero-cost-abstractions-2xtm5ikvb","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/iterators-are-also-part-of-the-c-zero-cost-abstractions-2xtm5ikvb"},"datePublished":"2026-04-18T22:20:03.262Z","dateModified":"2026-04-18T22:50:45.259Z","description":"A deep dive into C++ zero-cost abstractions using a real-world microkernel memory mapping problem. 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