Initial data commit

Task/Singly-linked-list-Element-definition/Objective-C/singly-linked-list-element-definition.m

@@ -0,0 +1,33 @@
+#import <Foundation/Foundation.h>
+
+@interface RCListElement<T> : NSObject
+{
+  RCListElement<T> *next;
+  T datum;
+}
+- (RCListElement<T> *)next;
+- (T)datum;
+- (RCListElement<T> *)setNext: (RCListElement<T> *)nx;
+- (void)setDatum: (T)d;
+@end
+
+@implementation RCListElement
+- (RCListElement *)next
+{
+  return next;
+}
+- (id)datum
+{
+  return datum;
+}
+- (RCListElement *)setNext: (RCListElement *)nx
+{
+  RCListElement *p = next;
+  next = nx;
+  return p;
+}
+- (void)setDatum: (id)d
+{
+  datum = d;
+}
+@end