Logs on smirking teapothttps://glados-418.github.io/logs/Recent content in Logs on smirking teapotHugoen-usThu, 23 Apr 2026 00:00:00 +0000std::unreachable in C++23https://glados-418.github.io/logs/std-unreachable-cpp23/Thu, 23 Apr 2026 00:00:00 +0000https://glados-418.github.io/logs/std-unreachable-cpp23/<p>C++23 introduced <code>std::unreachable()</code> (defined in <code>&lt;utility&gt;</code>) to explicitly mark code paths that should never execute. Before this, we relied on compiler-specific builtins like <code>__builtin_unreachable()</code> (GCC/Clang) or <code>__assume(false)</code> (MSVC).</p>