--- title: Using operator overloads for concatenating file system... description: Demonstrates how C# operator overloading can be used to build a fluent, platform-specific file path syntax using the division operator, inspired by seeing it... canonical: https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Using operator overloads for concatenating file system paths in CSharp | daily.dev og:description: Demonstrates how C# operator overloading can be used to build a fluent, platform-specific file path syntax using the division operator, inspired by seeing it... og:url: https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu og:image: https://api.daily.dev/og/posts/xu6Go9gmU.png og:image:alt: Using operator overloads for concatenating file system paths in CSharp 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. # Using operator overloads for concatenating file system paths in CSharp **[Maarten Balliauw](https://daily.dev/sources/maartenballiauw)** · 2 min read · 0 upvotes · 0 comments ## Summary Demonstrates how C# operator overloading can be used to build a fluent, platform-specific file path syntax using the division operator, inspired by seeing it used internally in ReSharper's codebase. Shows a FilePath struct implementation that overloads the / operator to wrap Path.Combine, enabling syntax like rootPath / "subfolder" / "file.txt" instead of nested Path.Combine calls. Suggests other potential uses for operator overloading on collections or domain objects. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How can I overload the division operator in C# to concatenate file paths like a Unix path syntax? Define a struct wrapping a string path, then implement a static operator / method that calls Path.Combine internally. For example, a FilePath struct with operator /(FilePath left, string right) returning new FilePath(Path.Combine(left.Path, right)) lets you write rootPath / "subfolder" / "file.txt" instead of nested Path.Combine calls, while still producing platform-specific separators. _Developers polishing internal APIs can find more C# syntax tricks like this through daily.dev._ ## Similar posts on daily.dev - [\[HOWTO\] Using Path.Combine correctly to ensure cross-platform compatibility](https://daily.dev/posts/howto-using-path-combine-correctly-to-ensure-cross-platform-compatibility-rild2yaer) · We Are .NET · 0 upvotes · 0 comments - [Off the Path](https://daily.dev/posts/off-the-path-hdds0umvq) · The Daily WTF · 2 upvotes · 0 comments - [The best new features of C\# 14](https://daily.dev/posts/the-best-new-features-of-c-14-6gsbbjwv4) · InfoWorld · 46 upvotes · 4 comments - [New features and Roslyn analyzers for Meziantou.Framework.FullPath](https://daily.dev/posts/new-features-and-roslyn-analyzers-for-meziantou-framework-fullpath-po20wwci9) · Meziantou · 6 upvotes · 0 comments --- Tags: [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#) [View this post on daily.dev](https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu) ```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":"Using operator overloads for concatenating file system paths in CSharp","url":"https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu"},"datePublished":"2026-10-04T13:04:10.787Z","dateModified":"2026-10-04T13:04:59.693Z","description":"Demonstrates how C# operator overloading can be used to build a fluent, platform-specific file path syntax using the division operator, inspired by seeing it...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7b6163fc2b27615314a8715ccb9e619f?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7b6163fc2b27615314a8715ccb9e619f?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Maarten Balliauw","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":"Maarten Balliauw","logo":"https://media.daily.dev/image/upload/s--rOTg3VYO--/f_auto,q_auto/v1791119043/logos/maartenballiauw?_a=BAMAMicg0","url":"https://daily.dev/sources/maartenballiauw"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":".net,c#","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Maarten Balliauw","item":"https://daily.dev/sources/maartenballiauw"},{"@type":"ListItem","position":3,"name":"Using operator overloads for concatenating file system paths in CSharp"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/using-operator-overloads-for-concatenating-file-system-paths-in-csharp-xu6go9gmu#faq","mainEntity":[{"@type":"Question","name":"How can I overload the division operator in C# to concatenate file paths like a Unix path syntax?","acceptedAnswer":{"@type":"Answer","text":"Define a struct wrapping a string path, then implement a static operator / method that calls Path.Combine internally. For example, a FilePath struct with operator /(FilePath left, string right) returning new FilePath(Path.Combine(left.Path, right)) lets you write rootPath / \"subfolder\" / \"file.txt\" instead of nested Path.Combine calls, while still producing platform-specific separators. Developers polishing internal APIs can find more C# syntax tricks like this through daily.dev."}}]} ```