1 files changed, 24 insertions, 0 deletions
diff --git a/stack.h b/stack.h
new file mode 100644
index 0000000..16fe07b
--- /dev/null
+++ b/stack.h
@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifndef STACK_H
+#define STACK_H
+
+typedef int stackitem;
+
+typedef struct {
+    int size;
+    int maxsize;
+    stackitem* start;
+} stack;
+
+
+stack* newstack();
+
+stackitem pop(stack* s);
+
+stackitem peek(stack* s);
+
+void push(stack *s, stackitem si);
+
+#endif