From 30534606d5690e176d168f640f55162fa15f0a19 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Thu, 2 Nov 2017 11:02:07 -0400
Subject: major changes (again) to the measurement of autocorrelation

---
 lib/queue.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'lib/queue.c')

diff --git a/lib/queue.c b/lib/queue.c
index aebbb2a..0823518 100644
--- a/lib/queue.c
+++ b/lib/queue.c
@@ -9,6 +9,14 @@ void stack_push(ll_t **q, uint32_t x) {
   *q = nq;
 }
 
+void stack_push_d(dll_t **q, double x) {
+  dll_t *nq = malloc(sizeof(dll_t));
+  nq->x = x;
+  nq->next = *q;
+
+  *q = nq;
+}
+
 uint32_t stack_pop(ll_t **q) {
   ll_t *old_q = *q;
 
@@ -20,6 +28,17 @@ uint32_t stack_pop(ll_t **q) {
   return x;
 }
 
+double stack_pop_d(dll_t **q) {
+  dll_t *old_q = *q;
+
+  *q = old_q->next;
+  double x = old_q->x;
+
+  free(old_q);
+
+  return x;
+}
+
 bool stack_contains(const ll_t *q, uint32_t x) {
   if (q == NULL) {
     return false;
-- 
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