//
// Exception tracer library.
-#ifndef FOLLY_EXPERIMENTAL_EXCEPTION_TRACER_EXCEPTIONTRACER_H_
-#define FOLLY_EXPERIMENTAL_EXCEPTION_TRACER_EXCEPTIONTRACER_H_
+#pragma once
#include <cstdint>
#include <iosfwd>
} // namespace exception_tracer
} // namespace folly
-
-#endif /* FOLLY_EXPERIMENTAL_EXCEPTION_TRACER_EXCEPTIONTRACER_H_ */