diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/DOMLocationTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/DOMLocationTests.java
index 02d06b1c505..506bed23892 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/DOMLocationTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/DOMLocationTests.java
@@ -10,6 +10,7 @@
  **********************************************************************/
 package org.eclipse.cdt.core.parser.tests.ast2;
 
+import org.eclipse.cdt.core.dom.ast.IASTCastExpression;
 import org.eclipse.cdt.core.dom.ast.IASTCompoundStatement;
 import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
@@ -19,6 +20,8 @@ import org.eclipse.cdt.core.dom.ast.IASTFunctionDeclarator;
 import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
 import org.eclipse.cdt.core.dom.ast.IASTFunctionStyleMacroParameter;
 import org.eclipse.cdt.core.dom.ast.IASTIdExpression;
+import org.eclipse.cdt.core.dom.ast.IASTInitializer;
+import org.eclipse.cdt.core.dom.ast.IASTInitializerExpression;
 import org.eclipse.cdt.core.dom.ast.IASTNode;
 import org.eclipse.cdt.core.dom.ast.IASTNodeLocation;
 import org.eclipse.cdt.core.dom.ast.IASTPreprocessorFunctionStyleMacroDefinition;
@@ -27,6 +30,7 @@ import org.eclipse.cdt.core.dom.ast.IASTPreprocessorObjectStyleMacroDefinition;
 import org.eclipse.cdt.core.dom.ast.IASTReturnStatement;
 import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
 import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.dom.ast.IASTTypeId;
 import org.eclipse.cdt.core.parser.ParserLanguage;
 import org.eclipse.cdt.internal.core.parser.ParserException;
 
@@ -179,5 +183,40 @@ public class DOMLocationTests extends AST2BaseTest {
       }
    }
 
+   
+   public void testBug83852() throws Exception {
+      String code = "/* blah */ typedef short jc;  int x = 4;  jc myJc = (jc)x; "; //$NON-NLS-1$
+      for (ParserLanguage p = ParserLanguage.C; p != null; p = (p == ParserLanguage.C) ? ParserLanguage.CPP
+            : null) {
+         IASTTranslationUnit tu = parse(code, p); 
+         IASTDeclaration [] declarations = tu.getDeclarations();
+         assertEquals( 3, declarations.length );
+         for( int i = 0; i < 3; ++i )
+         {
+            IASTSimpleDeclaration decl = (IASTSimpleDeclaration) declarations[i];
+            int start = 0, length = 0;
+            switch( i )
+            {
+               case 0:
+                  start = code.indexOf( "typedef"); //$NON-NLS-1$
+                  length = "typedef short jc;".length(); //$NON-NLS-1$
+                  break;
+               case 1:
+                  start = code.indexOf( "int x = 4;"); //$NON-NLS-1$
+                  length = "int x = 4;".length(); //$NON-NLS-1$
+                  break;
+               case 2:
+                  start = code.indexOf( "jc myJc = (jc)x;"); //$NON-NLS-1$
+                  length = "jc myJc = (jc)x;".length(); //$NON-NLS-1$
+                  break;
+            }
+            assertSoleLocation( decl, start, length );
+         }
+         IASTInitializerExpression initializer = (IASTInitializerExpression) ((IASTSimpleDeclaration)declarations[2]).getDeclarators()[0].getInitializer();
+         IASTCastExpression castExpression = (IASTCastExpression) initializer.getExpression();
+         IASTTypeId typeId = castExpression.getTypeId();
+         assertSoleLocation( typeId, code.indexOf( "(jc)") + 1, "jc".length() ); //$NON-NLS-1$ //$NON-NLS-2$
+      }
+   }
 
 }
\ No newline at end of file
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
index 9a8f9243431..d78c4fff126 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/c/GNUCSourceParser.java
@@ -1184,7 +1184,7 @@ public class GNUCSourceParser extends AbstractGNUSourceCodeParser {
 
 		IASTTypeId result = createTypeId();
 		((ASTNode) result).setOffsetAndLength(startingOffset, figureEndOffset(
-				declSpecifier, declarator));
+				declSpecifier, declarator) - startingOffset);
 
 		result.setDeclSpecifier(declSpecifier);
 		declSpecifier.setParent(result);
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
index ba7e472b9ab..ca08d789533 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
@@ -914,7 +914,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
 
       IASTTypeId result = createTypeId();
       ((ASTNode) result).setOffsetAndLength(startingOffset, figureEndOffset(
-            declSpecifier, declarator));
+            declSpecifier, declarator) - startingOffset);
 
       result.setDeclSpecifier(declSpecifier);
       declSpecifier.setParent(result);