feat: rotr

bytecodes/35.m

@@ -9,5 +9,5 @@
 push 9
 push 0
 pall
-rotl
+rotr
 pall

get_operation.c

@@ -22,6 +22,7 @@ void (*get_op(char *name))(stack_t **, unsigned int)
 		{"pchar", pchar},
 		{"pstr", pstr},
 		{"rotl", rotl},
+		{"rotr", rotr},
 		{NULL, NULL}
 	};
 

monty.h

@@ -62,6 +62,7 @@ void _mod(stack_t **stack, unsigned int line_number);
 void pchar(stack_t **stack, unsigned int line_number);
 void pstr(stack_t **stack, unsigned int line_number);
 void rotl(stack_t **stack, unsigned int line_number);
+void rotr(stack_t **stack, unsigned int line_number);
 
 /* Miscellaneous */
 void (*get_op(char *name))(stack_t **stack, unsigned int line_number);

rotate.c

@@ -24,3 +24,26 @@ void rotl(stack_t **stack, unsigned int line_number)
 	node->prev = temp;
 	node->next = NULL;
 }
+
+/**
+ * rotr - rotates the stack
+ * @stack: pointer to stack
+ * @line_number: line number of opcode
+ */
+void rotr(stack_t **stack, unsigned int line_number)
+{
+	stack_t *temp;
+
+	if (!stack || !*stack || !(*stack)->next)
+		return;
+
+	(void) line_number;
+	temp = *stack;
+
+	while (temp->next)
+		temp = temp->next;
+	temp->prev->next = NULL;
+	temp->next = *stack;
+	temp->prev = NULL;
+	*stack = temp;
+}