Exceptions: Difference between revisions

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@@ Line 57: / Line 57: @@
   {
     switch (setjmp(env)) {
-    case 0:                /* try */
+    case 0:                     /* try */
       foo();
       break;
-    case MY_EXCEPTION:     /* catch MY_EXCEPTION */
+    case MY_EXCEPTION:          /* catch MY_EXCEPTION */
       /* handle exceptions of type MY_EXCEPTION */
       break;
@@ Line 73: / Line 73: @@
 if an exception is thrown.
+The exception can be of any type, this includes int's, other primitives, as well as objects.
-===try-catch===
+===Defining exceptions===
   struct MyException
   {
     // data with info about exception
   };
+===Throw exceptions===
+  // this function can throw any type of exception
   void foo()
   {
     throw MyException();
   }
+  // this function can only throw the types of exceptions that are listed
-  void call_foo()
+  void foo2() throw(MyException)
   {
-    try {
+    throw MyException();
+  }
-      foo();
-    }
+===Catching exceptions===
-    catch (MyException &exc)
-    {
+  try {
+    foo();
-      // handle exceptions of type MyException and derived
-    }
+  }
-    catch (...)
+  catch (MyException &exc)
-    {
+  {
-      // handle any type of exception not handled by above catches
+    // handle exceptions of type MyException and derived
-    }
+  }
+  catch (...)
+  {
+    // handle any type of exception not handled by above catches
   }
@@ Line 103: / Line 110: @@
 '''Compiler''': MSVS 2005
+===Defining exceptions===
   public class MyException : Exception
   {
     // data with info about exception
   };
+===Throw exceptions===
   void foo()
   {
     throw MyException();
   }
+===Catching exceptions===
-  void call_foo()
+  try {
+    foo();
+  }
+  catch (MyException e)
   {
+    // handle exceptions of type MyException and derived
-    try {
+  }
-      foo();
-    }
+  catch
+  {
-    catch (MyException e)
+    // handle any type of exception not handled by above catches
-    {
+  }
-      // handle exceptions of type MyException and derived
-    }
-    catch
-    {
-      // handle any type of exception not handled by above catches
-    }
-  }
 =={{header|Factor}}==
 ===Throw Exceptions===
@@ Line 176: / Line 184: @@
 =={{header|Java}}==
+An exception needs to extend the Exception type.
 ===Defining exceptions===
    //Checked exception