--- title: July 9, 2026 | daily.dev description: When you fix a `#pragma detect_mismatch` mismatch in C++, the linker error may persist because dependent translation units or libraries still contain the old... canonical: https://daily.dev/posts/july-9-2026-xfqvtejft twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: July 9, 2026 | daily.dev og:description: When you fix a `#pragma detect_mismatch` mismatch in C++, the linker error may persist because dependent translation units or libraries still contain the old... og:url: https://daily.dev/posts/july-9-2026-xfqvtejft og:image: https://api.daily.dev/og/posts/xFqvteJft.png og:image:alt: July 9, 2026 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. # July 9, 2026 **[DevBlogs](https://daily.dev/sources/devblogs)** · 1 min read · 0 upvotes · 0 comments ## Summary When you fix a `#pragma detect_mismatch` mismatch in C++, the linker error may persist because dependent translation units or libraries still contain the old mismatched value. The fix is to rebuild everything that depends on the changed code, not just the file where the mismatch was corrected. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [C\+\+26: Module improvements](https://daily.dev/posts/c-26-module-improvements-wjjrwsrwt) · Sandor Dargo · 1 upvotes · 0 comments - [Why CPP is going to be relevant AGAIN?](https://daily.dev/posts/why-cpp-is-going-to-be-relevant-again--p1o0tcdzt) · Medium · 43 upvotes · 4 comments - [neither gcc nor clang are compliant with standard c\+\+](https://daily.dev/posts/neither-gcc-nor-clang-are-compliant-with-standard-c--2ncm7bz4e) · Lobsters · 6 upvotes · 0 comments - [August 20, 2026](https://daily.dev/posts/august-20-2026-zjzarhijy) · The Old New Thing · 1 upvotes · 0 comments - [July 10, 2026](https://daily.dev/posts/july-10-2026-pnubwvsk5) · DevBlogs · 2 upvotes · 0 comments --- Tags: [#c++](https://daily.dev/tags/c++), [#build-systems](https://daily.dev/tags/build-systems) [View this post on daily.dev](https://daily.dev/posts/july-9-2026-xfqvtejft) ```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":"July 9, 2026","url":"https://daily.dev/posts/july-9-2026-xfqvtejft","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/july-9-2026-xfqvtejft"},"datePublished":"2026-07-09T14:05:13.766Z","dateModified":"2026-07-09T14:05:27.634Z","description":"When you fix a `#pragma detect_mismatch` mismatch in C++, the linker error may persist because dependent translation units or libraries still contain the old...","image":"https://media.daily.dev/image/upload/s--VDukGCjf--/f_auto/v1722860399/public/Placeholder%2002","thumbnailUrl":"https://media.daily.dev/image/upload/s--VDukGCjf--/f_auto/v1722860399/public/Placeholder%2002","isAccessibleForFree":true,"articleSection":"DevBlogs","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":"DevBlogs","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/8f68b453325f482ebeb73fb780092713","url":"https://daily.dev/sources/devblogs"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/july-9-2026-xfqvtejft","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"c++,build-systems","timeRequired":"PT1M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"DevBlogs","item":"https://daily.dev/sources/devblogs"},{"@type":"ListItem","position":3,"name":"July 9, 2026"}]} ```