From 3126857efc62fa916f34db188ea6c8454efe17fa Mon Sep 17 00:00:00 2001
From: "orestis.malaspin" <orestis.malaspinas@hesge.ch>
Date: Mon, 6 Dec 2021 18:31:12 +0100
Subject: [PATCH] Resolve "Add is empty function"

---
 stack.c | 13 +++++++++++++
 stack.h |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/stack.c b/stack.c
index fc4205b..209089f 100644
--- a/stack.c
+++ b/stack.c
@@ -1,4 +1,7 @@
 #include <stdlib.h>
+#include <stdbool.h>
+#include <stdio.h>
+
 #include "stack.h"
 
 
@@ -75,3 +78,13 @@ int get_length(stack s) {
     return s.top + 1;
 }
 
+/**
+ * @brief Check if a stack is empty
+ * 
+ * @param s
+ * @return bool - true if stack is empty, false otherwise
+ */
+bool stack_is_empty(stack s)
+{
+    return s.top == -1;
+}
\ No newline at end of file
diff --git a/stack.h b/stack.h
index 010bfdc..5aa60b4 100644
--- a/stack.h
+++ b/stack.h
@@ -1,7 +1,6 @@
 #ifndef _STACK_H_
 #define _STACK_H_
 
-
 typedef struct _stack {
     int *data;
     int capacity;
@@ -17,6 +16,7 @@ void stack_pop(stack *s, int *value);
 void stack_peek(stack s, int *value);
 void stack_clone(stack s, stack *clone);
 int get_length(stack s);
+bool stack_is_empty(stack s);
 
 void stack_print(const stack s);
 
-- 
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