parser formed

1 files changed, 37 insertions, 0 deletions

diff --git a/stack.c b/stack.c
new file mode 100644
index 0000000..272732f
--- /dev/null
+++ b/stack.c
@@ -0,0 +1,37 @@
+#ifndef GSTACK_C
+#define GSTACK_C GSTACK_C
+#include "stack.h"
+
+
+
+void Stack_Init(Stack *stack)
+{
+    stack->size=0;
+    stack->first=NULL;
+}
+void Stack_Push(Stack *stack,void* data)
+{
+    struct Stack_Node *temp_node=malloc(sizeof(struct Stack_Node));
+    temp_node->data=data;
+    temp_node->next=stack->first;
+    stack->first=temp_node;
+    ++stack->size;
+}
+void* Stack_Pop(Stack *stack)
+{
+    void* return_value=NULL;
+    if(stack->first!=NULL)
+    {
+        struct Stack_Node *temp_first=stack->first;
+        return_value=stack->first->data;
+
+        --stack->size;
+        stack->first=stack->first->next;
+        free(temp_first);
+    }
+
+    return return_value;
+}
+
+#endif//#ifndef GSTACK_C
+