1 files changed, 58 insertions, 0 deletions
diff --git a/src/boost/libs/yap/example/autodiff_library/Stack.cpp b/src/boost/libs/yap/example/autodiff_library/Stack.cpp
new file mode 100644
index 000000000..f0e69f84a
--- /dev/null
+++ b/src/boost/libs/yap/example/autodiff_library/Stack.cpp
@@ -0,0 +1,58 @@
+/*
+ * Stack.cpp
+ *
+ *  Created on: 15 Apr 2013
+ *      Author: s0965328
+ */
+
+
+#include <cstddef>
+#include <math.h>
+#include <cassert>
+
+#include "Stack.h"
+
+namespace AutoDiff {
+
+
+Stack* Stack::vals = NULL;
+Stack* Stack::diff = NULL;
+
+Stack::Stack()
+{
+}
+
+Stack::~Stack() {
+	this->clear();
+}
+
+
+double Stack::pop_back()
+{
+	assert(this->lifo.size()!=0);
+	double v = this->lifo.top();
+	lifo.pop();
+	return v;
+}
+void Stack::push_back(double& v)
+{
+	assert(!isnan(v));
+	this->lifo.push(v);
+}
+double& Stack::peek()
+{
+	return this->lifo.top();
+}
+unsigned int Stack::size()
+{
+	return this->lifo.size();
+}
+
+void Stack::clear()
+{
+	while(!this->lifo.empty())
+	{
+		this->lifo.pop();
+	}
+}
+}