1 files changed, 21 insertions, 0 deletions
diff --git a/src/stack.c b/src/stack.c
new file mode 100644
index 0000000..e8e9bb1
--- /dev/null
+++ b/src/stack.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include "stack.h"
+
+void stack_push(stack_t *stack, int value)
+{
+	if (stack->size >= stack->capacity) {
+		perror("stack overflow");
+		exit(EXIT_FAILURE);
+	}
+	stack->data[stack->size++] = value;
+}
+
+int stack_pop(stack_t *stack)
+{
+	if (stack->size <= 0) {
+		perror("stack_pop: Stack already empty");
+		exit(EXIT_FAILURE);
+	}
+	return stack->data[--stack->size];
+}
+