Switch from header guards to pragma once

src/logging/Component.h

@@ -1,7 +1,6 @@
 // See the file "COPYING" in the main distribution directory for copyright.
 
-#ifndef LOGGING_COMPONENT_H
-#define LOGGING_COMPONENT_H
+#pragma once
 
 #include "Tag.h"
 #include "plugin/Component.h"
@@ -62,5 +61,3 @@ private:
 };
 
 }
-
-#endif

src/logging/Manager.h

@@ -2,8 +2,7 @@
 //
 // A class managing log writers and filters.
 
-#ifndef LOGGING_MANAGER_H
-#define LOGGING_MANAGER_H
+#pragma once
 
 #include <broker/endpoint_info.hh>
 
@@ -279,5 +278,3 @@ private:
 }
 
 extern logging::Manager* log_mgr;
-
-#endif

src/logging/Tag.h

@@ -1,7 +1,6 @@
 // See the file "COPYING" in the main distribution directory for copyright.
 
-#ifndef LOGGING_TAG_H
-#define LOGGING_TAG_H
+#pragma once
 
 #include "zeek-config.h"
 #include "util.h"
@@ -114,5 +113,3 @@ protected:
 };
 
 }
-
-#endif

src/logging/WriterBackend.h

@@ -2,8 +2,7 @@
 //
 // Bridge class between main process and writer threads.
 
-#ifndef LOGGING_WRITERBACKEND_H
-#define LOGGING_WRITERBACKEND_H
+#pragma once
 
 #include "threading/MsgThread.h"
 
@@ -390,6 +389,3 @@ private:
 
 
 }
-
-#endif
-

src/logging/WriterFrontend.h

@@ -1,7 +1,6 @@
 // See the file "COPYING" in the main distribution directory for copyright.
 
-#ifndef LOGGING_WRITERFRONTEND_H
-#define LOGGING_WRITERFRONTEND_H
+#pragma once
 
 #include "WriterBackend.h"
 
@@ -212,5 +211,3 @@ protected:
 };
 
 }
-
-#endif

src/logging/writers/ascii/Ascii.h

@@ -2,8 +2,7 @@
 //
 // Log writer for delimiter-separated ASCII logs.
 
-#ifndef LOGGING_WRITER_ASCII_H
-#define LOGGING_WRITER_ASCII_H
+#pragma once
 
 #include "logging/WriterBackend.h"
 #include "threading/formatters/Ascii.h"
@@ -76,5 +75,3 @@ private:
 }
 }
 
-
-#endif

src/logging/writers/none/None.h

@@ -2,8 +2,7 @@
 //
 // Dummy log writer that just discards everything (but still pretends to rotate).
 
-#ifndef LOGGING_WRITER_NONE_H
-#define LOGGING_WRITER_NONE_H
+#pragma once
 
 #include "logging/WriterBackend.h"
 
@@ -32,5 +31,3 @@ protected:
 
 }
 }
-
-#endif

src/logging/writers/sqlite/SQLite.h

@@ -2,8 +2,7 @@
 //
 // Log writer for SQLITE logs.
 
-#ifndef LOGGING_WRITER_SQLITE_H
-#define LOGGING_WRITER_SQLITE_H
+#pragma once
 
 #include "zeek-config.h"
 
@@ -54,6 +53,3 @@ private:
 
 }
 }
-
-#endif /* LOGGING_WRITER_SQLITE_H */
-