diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
index b1a7c4f1a3e..9e5f21dd5d8 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/scanner2/Scanner2Test.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2003, 2006 IBM Corporation and others.
+ * Copyright (c) 2003, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -8,6 +8,7 @@
  * Contributors:
  *     IBM Corp. - Rational Software - initial implementation
  *     Markus Schorn (Wind River Systems)
+ *     Anton Leherbauer (Wind River Systems)
  *******************************************************************************/
 
 package org.eclipse.cdt.core.parser.tests.scanner2;
@@ -2501,5 +2502,18 @@ public class Scanner2Test extends BaseScanner2Test
        buffer.append("a       		             \n");
        initializeScanner(buffer.toString());
        validateIdentifier("a");
-   }	   
+   }
+   
+   // https://bugs.eclipse.org/bugs/show_bug.cgi?id=182180
+   public void testBug182180() throws Exception {
+       StringBuffer buffer = new StringBuffer();
+       buffer
+        .append("#ifdef _bug_182180_\n")
+       	.append("    printf(\"Hello World /*.ap\\n\");\n")
+       	.append("#endif\n")
+       	.append("bug182180\n");
+       initializeScanner(buffer.toString());
+       validateIdentifier("bug182180");
+   }
+   
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/BaseScanner.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/BaseScanner.java
index 8a7eb2a3fb6..5e8c78fca75 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/BaseScanner.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner2/BaseScanner.java
@@ -3002,11 +3002,12 @@ abstract class BaseScanner implements IScanner {
         int pos = bufferPos[bufferStackPos];
         
         boolean escaped = false;
+        boolean insideString= false;
         while (++pos < limit) {
         	char ch= buffer[pos];
             switch (ch) {
             case '/':
-            	if (insideComment) {
+            	if (insideComment || insideString) {
             		break;
             	}
                 if (pos + 1 < limit) {
@@ -3030,6 +3031,11 @@ abstract class BaseScanner implements IScanner {
             case '\\':
                 escaped = !escaped;
                 continue;
+            case '"':
+            	if (!insideComment && !escaped) {
+            		insideString= !insideString;
+            	}
+            	break;
             case '\n':
                 if (escaped) {
                     break;