https://blog.terryfunggg.dev/categories/c/ Recent content in C on TerryFunggg Blog Hugo en-us terryeessfung@gmail.com (TerryFung) terryeessfung@gmail.com (TerryFung) TerryFung Sun, 11 Oct 2026 00:00:00 +0000 https://blog.terryfunggg.dev/notes/opaque_type/ Sun, 11 Oct 2026 00:00:00 +0000terryeessfung@gmail.com (TerryFung) https://blog.terryfunggg.dev/notes/opaque_type/ <p>Checking on open directory in C.</p> <figure class="codeblock not-prose relative scroll-mt-8" id="codeblock-01"> <aside class="absolute right-0 top-0 hidden rounded-bl-sm rounded-tr-sm bg-white/10 px-2 py-1 text-white/70 transition-opacity md:inline-block" > <div class="codeblock-meta flex max-w-xs flex-row items-center space-x-3"> <div class="small-caps shrink cursor-default truncate font-mono text-xs" aria-hidden="true"> <span class="relative">c</span> </div> <div> <clipboard-copy type="button" aria-label="Copy code to clipboard" title="Copy code to clipboard" class="block cursor-pointer transition-colors hover:text-sky-400" target="#codeblock-01 code" > <svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-clipboard h-4 w-4" viewBox="0 0 24 24" > <rect width="8" height="4" x="8" y="2" rx="1" ry="1" /> <path d="M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2" /> </svg> </clipboard-copy> </div> <div> <a href="#codeblock-01" class="block" aria-label="Link to this code block" title="Link to this code block" > <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="lucide lucide-link w-4 h-4 block" viewBox="0 0 24 24" > <path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71" /> <path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71" /> </svg> </a> </div> </div> </aside> <p class="sr-only">c code snippet start</p> https://blog.terryfunggg.dev/notes/sdl_keyboard/ Sat, 03 Oct 2026 00:00:00 +0000terryeessfung@gmail.com (TerryFung) https://blog.terryfunggg.dev/notes/sdl_keyboard/ <p>I was moving two rects with SDL. Player 1 on W/S, player 2 on up/down.</p> <p>Up and down felt fine. But W and S felt like delay.</p> <p>The loop was this:</p> <figure class="codeblock not-prose relative scroll-mt-8" id="codeblock-01"> <aside class="absolute right-0 top-0 hidden rounded-bl-sm rounded-tr-sm bg-white/10 px-2 py-1 text-white/70 transition-opacity md:inline-block" > <div class="codeblock-meta flex max-w-xs flex-row items-center space-x-3"> <div class="small-caps shrink cursor-default truncate font-mono text-xs" aria-hidden="true"> <span class="relative">c</span> </div> <div> <clipboard-copy type="button" aria-label="Copy code to clipboard" title="Copy code to clipboard" class="block cursor-pointer transition-colors hover:text-sky-400" target="#codeblock-01 code" > <svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-clipboard h-4 w-4" viewBox="0 0 24 24" > <rect width="8" height="4" x="8" y="2" rx="1" ry="1" /> <path d="M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2" /> </svg> </clipboard-copy> </div> <div> <a href="#codeblock-01" class="block" aria-label="Link to this code block" title="Link to this code block" > <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="lucide lucide-link w-4 h-4 block" viewBox="0 0 24 24" > <path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71" /> <path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71" /> </svg> </a> </div> </div> </aside> <p class="sr-only">c code snippet start</p>