Changes in src/examples/iterator.c [e56cfdb0:86bd7c1f]

File:

• src/examples/iterator.c (modified) (1 diff)

src/examples/iterator.c

@@ -10 +10 @@
 // Created On       : Wed May 27 17:56:53 2015
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Thu Nov 19 17:54:37 2015
-// Update Count     : 24
+// Last Modified On : Wed May 27 18:41:41 2015
+// Update Count     : 3
 //
 
 #include "iterator.h"
 
-forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) )
-void for_each( iterator_type begin, iterator_type end, void (*func)( elt_type ) ) {
-        for ( iterator_type i = begin; i != end; ++i ) {
-                func( *i );
+/// forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) )
+/// void
+/// for_each( iterator_type begin, iterator_type end, void (*func)( elt_type ) )
+/// {
+///   iterator_type i;
+///   for ( i = begin; i != end; ++i ) {
+///      func( *i );
+///   }
+/// }
+
+forall( type elt_type | writeable( elt_type ),
+                type iterator_type | iterator( iterator_type, elt_type ),
+                dtype os_type | ostream( os_type ) )
+void write_all( iterator_type begin, iterator_type end, os_type *os ) {
+        iterator_type i;
+        for ( i = begin; i != end; ++i ) {
+                os << *i << ' ';
         }
 }
 
-forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) )
-void for_each_reverse( iterator_type begin, iterator_type end, void (*func)( elt_type ) ) {
-        for ( iterator_type i = end; i != begin; ) {
+forall( type elt_type | writeable( elt_type ),
+                type iterator_type | iterator( iterator_type, elt_type ),
+                dtype os_type | ostream( os_type ) )
+void write_reverse( iterator_type begin, iterator_type end, os_type *os ) {
+        iterator_type i; // "= end;" does not work
+        i = end;
+        do {
                 --i;
-                func( *i );
-        }
+                os << *i << ' ';
+        } while ( i != begin );
 }