1 files changed, 46 insertions, 0 deletions
diff --git a/lib/ngtcp2_unreachable.h b/lib/ngtcp2_unreachable.h
new file mode 100644
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--- /dev/null
+++ b/lib/ngtcp2_unreachable.h
@@ -0,0 +1,46 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2022 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGTCP2_UNREACHABLE_H
+#define NGTCP2_UNREACHABLE_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <ngtcp2/ngtcp2.h>
+
+#define ngtcp2_unreachable()                                                   \
+  ngtcp2_unreachable_fail(__FILE__, __LINE__, __func__)
+
+#ifdef _MSC_VER
+__declspec(noreturn)
+#endif /* _MSC_VER */
+    void ngtcp2_unreachable_fail(const char *file, int line, const char *func)
+#ifndef _MSC_VER
+        __attribute__((noreturn))
+#endif /* !_MSC_VER */
+        ;
+
+#endif /* NGTCP2_UNREACHABLE_H */