Fixed casting, added fatal error

1 files changed, 16 insertions, 0 deletions

diff --git a/include/fatal_error.h b/include/fatal_error.h
new file mode 100644
index 0000000..06e1b88
--- /dev/null
+++ b/include/fatal_error.h
@@ -0,0 +1,16 @@
+#ifndef FATAL_ERROR_H
+#define FATAL_ERROR_H
+
+#include <format>
+#include <cstdlib>
+#include <cstdio>
+
+template <typename... Args>
+[[noreturn]] void fatal_error(std::format_string<Args...> fmt, Args&&... args) {
+    std::string msg = std::format(fmt, std::forward<Args>(args)...);
+    std::fputs(msg.c_str(), stderr);
+    std::fputc('\n', stderr);
+    std::abort();
+}
+
+#endif