--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/SingleLinkedStack.cbc	Wed Oct 09 20:41:51 2019 +0900
@@ -0,0 +1,109 @@
+#include "../context.h"
+#interface "Stack.h"
+
+// typedef struct SingleLinkedStack {
+//     struct Element* top;
+// } SingleLinkedStack;
+
+Stack* createSingleLinkedStack(struct Context* context) {
+    struct Stack* stack = new Stack();
+    struct SingleLinkedStack* singleLinkedStack = new SingleLinkedStack();
+    stack->stack = (union Data*)singleLinkedStack;
+    singleLinkedStack->top = NULL;
+    stack->push = C_pushSingleLinkedStack;
+    stack->pop  = C_popSingleLinkedStack;
+    stack->pop2  = C_pop2SingleLinkedStack;
+    stack->get  = C_getSingleLinkedStack;
+    stack->get2  = C_get2SingleLinkedStack;
+    stack->isEmpty = C_isEmptySingleLinkedStack;
+    stack->clear = C_clearSingleLinkedStack;
+    return stack;
+}
+
+void printStack1(union Data* data) {
+    struct Node* node = &data->Element.data->Node;
+    // if (node == NULL) {
+    //     printf("NULL");
+    // } else {
+    //     printf("key = %d ,", node->key);
+    //     printStack1((union Data*)data->Element.next);
+    // }
+}
+
+void printStack(union Data* data) {
+    printStack1(data);
+    // printf("\n");
+}
+
+__code clearSingleLinkedStack(struct SingleLinkedStack* stack,__code next(...)) {
+    stack->top = NULL;
+    goto next(...);
+}
+
+__code pushSingleLinkedStack(struct SingleLinkedStack* stack, union Data* data, __code next(...)) {
+    Element* element = new Element();
+    element->next = stack->top;
+    element->data = data;
+    stack->top = element;
+    goto next(...);
+}
+
+__code popSingleLinkedStack(struct SingleLinkedStack* stack, __code next(union Data* data, ...)) {
+    if (stack->top) {
+        data = stack->top->data;
+        stack->top = stack->top->next;
+    } else {
+        data = NULL;
+    }
+    goto next(data, ...);
+}
+
+__code pop2SingleLinkedStack(struct SingleLinkedStack* stack, __code next(union Data* data, union Data* data1, ...)) {
+    if (stack->top) {
+        data = stack->top->data;
+        stack->top = stack->top->next;
+    } else {
+        data = NULL;
+    }
+    if (stack->top) {
+        data1 = stack->top->data;
+        stack->top = stack->top->next;
+    } else {
+        data1 = NULL;
+    }
+    goto next(data, data1, ...);
+}
+
+
+__code getSingleLinkedStack(struct SingleLinkedStack* stack, __code next(union Data* data, ...)) {
+    if (stack->top)
+        data = stack->top->data;
+    else
+        data = NULL;
+    goto next(data, ...);
+}
+
+__code get2SingleLinkedStack(struct SingleLinkedStack* stack, __code next(union Data* data, union Data* data1, ...)) {
+    if (stack->top) {
+        data = stack->top->data;
+        if (stack->top->next) {
+            data1 = stack->top->next->data;
+        } else {
+            data1 = NULL;
+        }
+    } else {
+        data = NULL;
+        data1 = NULL;
+    }
+    goto next(data, data1, ...);
+}
+    
+__code isEmptySingleLinkedStack(struct SingleLinkedStack* stack, __code next(...), __code whenEmpty(...)) {
+    if (stack->top) {
+        goto next(...);
+    } else {
+        goto whenEmpty(...);
+    }
+}
+
+