1 files changed, 21 insertions, 0 deletions
diff --git a/compat/failwith.hpp b/compat/failwith.hpp
new file mode 100644
index 00000000..580ed923
--- /dev/null
+++ b/compat/failwith.hpp
@@ -0,0 +1,21 @@
+#pragma once
+#include "compat/assert.hpp"
+#if !defined __GNUG__ && !defined _MSC_VER
+#include <utility>
+#endif
+
+namespace floormat {
+
+template<typename T> T failwith(const char* str)
+{
+    fm_abort("%s", str);
+#ifdef __GNUG__
+    __builtin_unreachable();
+#elif defined _MSC_VER
+    __assume(false);
+#else
+    std::unreachable();
+#endif
+}
+
+} // namespace floormat