From 592c64872c34596ec824fcdd123e5ccf614f63c4 Mon Sep 17 00:00:00 2001
From: phoppermann <51988084+phoppermann@users.noreply.github.com>
Date: Mon, 19 Apr 2021 13:22:06 +0200
Subject: [PATCH] cpp: use #pragma once

---
 src/main/java/edu/nps/moves/xmlpg/CppGenerator.java | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/main/java/edu/nps/moves/xmlpg/CppGenerator.java b/src/main/java/edu/nps/moves/xmlpg/CppGenerator.java
index b7e5ead..295ebd6 100644
--- a/src/main/java/edu/nps/moves/xmlpg/CppGenerator.java
+++ b/src/main/java/edu/nps/moves/xmlpg/CppGenerator.java
@@ -179,9 +179,8 @@ public void writeHeaderFile(GeneratedClass aClass) {
             outputFile.createNewFile();
             PrintWriter pw = new PrintWriter(outputFile);
 
-            // Write the usual #ifdef to prevent multiple inclusions by the preprocessor
-            pw.println("#ifndef " + aClass.getName().toUpperCase() + "_H");
-            pw.println("#define " + aClass.getName().toUpperCase() + "_H");
+            // prevent multiple inclusions by the preprocessor
+            pw.println("#pragma once");
             pw.println();
 
             // Write includes for any classes we may reference. this generates multiple #includes if we
@@ -410,9 +409,6 @@ public void writeHeaderFile(GeneratedClass aClass) {
                 pw.println("}");
             }
 
-            // Close if #ifndef statement that prevents multiple #includes
-            pw.println("\n#endif");
-
             this.writeLicenseNotice(pw);
 
             pw.flush();