diff --git a/core/org.eclipse.cdt.core.tests/ChangeLog b/core/org.eclipse.cdt.core.tests/ChangeLog
index 2b0907af290..bd316582bcc 100644
--- a/core/org.eclipse.cdt.core.tests/ChangeLog
+++ b/core/org.eclipse.cdt.core.tests/ChangeLog
@@ -1,3 +1,6 @@
+2004-03-29 John Camelon
+	Added ScannerTestCase::testBug56517().  
+
 2004-03-28 John Camelon
 	Removed ScannerTestCase::testGerman() until we can figure out how to make it portable.  
 
diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ScannerTestCase.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ScannerTestCase.java
index 3c079eed4fe..d62f7e243b4 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ScannerTestCase.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ScannerTestCase.java
@@ -1579,4 +1579,21 @@ public class ScannerTestCase extends BaseScannerTest
     	validateEOF();
 
     }
+    
+    public void testBug56517() throws Exception
+	{
+    	Writer writer = new StringWriter();
+    	writer.write( "#if 0 \n");
+    	writer.write( "char * x = \"#boo\";\n" );
+    	writer.write( "#endif\n");
+    	initializeScanner( writer.toString() );
+    	validateEOF();
+//    	validateToken( IToken.t_char);
+//    	validateToken( IToken.tSTAR);
+//    	validateIdentifier( "x");
+//    	validateToken( IToken.tASSIGN );
+//    	validateString( "#boo");
+//    	validateToken(IToken.tSEMI);
+//    	validateEOF();
+	}
 }
diff --git a/core/org.eclipse.cdt.core/parser/ChangeLog-parser b/core/org.eclipse.cdt.core/parser/ChangeLog-parser
index 54f3aaf7671..6908786fb94 100644
--- a/core/org.eclipse.cdt.core/parser/ChangeLog-parser
+++ b/core/org.eclipse.cdt.core/parser/ChangeLog-parser
@@ -1,3 +1,6 @@
+2004-03-29 John Camelon
+	Fixed Bug 56517 - Preprocessor skipping doesn't ignore the contents of string literals.	
+
 2004-03-28 John Camelon
 	Remove warnings.  
 
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/Scanner.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/Scanner.java
index 466d961b756..e95ecb7c631 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/Scanner.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/Scanner.java
@@ -1215,9 +1215,8 @@ public class Scanner implements IScanner {
 				scannerExtension.handlePreprocessorDirective( token, getRestOfPreprocessorLine() );
 			else
 			{
-				StringBuffer buffer = new StringBuffer( "#"); //$NON-NLS-1$
-				buffer.append( token );
-				handleProblem( IProblem.PREPROCESSOR_INVALID_DIRECTIVE, buffer.toString(), beginningOffset, false, true );
+				if( passOnToClient )
+					handleProblem( IProblem.PREPROCESSOR_INVALID_DIRECTIVE, token, beginningOffset, false, true );
 			}
 			return null;
 		}
@@ -1510,7 +1509,6 @@ public class Scanner implements IScanner {
 
 		while (c != NOCHAR) {
 			if ( ! passOnToClient ) {
-							
 				while (c != NOCHAR && c != '#' ) 
 				{
 					c = getChar();