The latest articles on DEV Community by mnengwa (@mnengwa). https://dev.to/mnengwa https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F106537%2F43f3b449-0726-4ba0-9500-0cf9e5fbde0c.jpg https://dev.to/mnengwa en mnengwa Fri, 05 Apr 2024 11:01:04 +0000 https://dev.to/mnengwa/bun-ffi-function-fails-when-i-return-a-null-terminated-slice-from-ziglang-23d7 https://dev.to/mnengwa/bun-ffi-function-fails-when-i-return-a-null-terminated-slice-from-ziglang-23d7 <div class="ltag__stackexchange--container"> <div class="ltag__stackexchange--title-container"> <div class="ltag__stackexchange--title"> <div class="ltag__stackexchange--header"> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--AoTUKOcU--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_800/https://dev.to/assets/stackoverflow-logo-b42691ae545e4810b105ee957979a853a696085e67e43ee14c5699cf3e890fb4.svg" alt=""> <a href="https://stackoverflow.com/questions/78279443/bun-ffi-function-fails-when-i-return-a-null-terminated-slice-from-ziglang" rel="noopener noreferrer"> Bun FFi function fails when I return a null terminated slice from ziglang </a> </div> <div class="ltag__stackexchange--post-metadata"> <span>Apr 5 '24</span> <span>Comments: 1</span> <span>Answers: 0</span> </div> </div> <a class="ltag__stackexchange--score-container" href="https://stackoverflow.com/questions/78279443/bun-ffi-function-fails-when-i-return-a-null-terminated-slice-from-ziglang" rel="noopener noreferrer"> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--oeieW07A--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_800/https://dev.to/assets/stackexchange-arrow-up-eff2e2849e67d156181d258e38802c0b57fa011f74164a7f97675ca3b6ab756b.svg" alt=""> <div class="ltag__stackexchange--score-number"> 0 </div> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--h2-sXgSn--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_800/https://dev.to/assets/stackexchange-arrow-down-4349fac0dd932d284fab7e4dd9846f19a3710558efde0d2dfd05897f3eeb9aba.svg" alt=""> </a> </div> <div class="ltag__stackexchange--body"> <p>I'm implementing a ziglang function to generate a ulid. So far it works when called via a main function. However, when using it with Bun's FFI it fails. (console.log) is an empty string.</p> <p>Zig</p> <pre><code>const std = @import("std") pub fn reverse(source: []const u8, target: []u8) void { for (source, 0..)</code></pre>… </div> <div class="ltag__stackexchange--btn--container"> <a href="https://stackoverflow.com/questions/78279443/bun-ffi-function-fails-when-i-return-a-null-terminated-slice-from-ziglang" class="ltag__stackexchange--btn" rel="noopener noreferrer">Open Full Question</a> </div> </div>