From 2af9351db3aa97da9b0d3f23d53a593bc96c8a8e Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Fri, 2 Feb 2018 18:33:22 -0500
Subject: does potts now, no external libraries

---
 lib/stack.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 lib/stack.h

(limited to 'lib/stack.h')

diff --git a/lib/stack.h b/lib/stack.h
new file mode 100644
index 0000000..a354ab5
--- /dev/null
+++ b/lib/stack.h
@@ -0,0 +1,26 @@
+
+#pragma once
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "types.h"
+
+typedef struct ll_tag {
+  v_t x;
+  struct ll_tag *next;
+} ll_t;
+
+typedef struct dll_tag {
+  double x;
+  struct dll_tag *next;
+} dll_t;
+
+void stack_push(ll_t **q, v_t x);
+void stack_push_d(dll_t **q, double x);
+
+v_t stack_pop(ll_t **q);
+double stack_pop_d(dll_t **q);
+
-- 
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