From 8c26c195213805face566a6407597ba2a871a122 Mon Sep 17 00:00:00 2001
From: "Wu, Ke" <wuke@cs.umd.edu>
Date: Tue, 7 Oct 2014 18:44:05 -0400
Subject: Move synutils under utils

---
 utils/lbfgs.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 utils/lbfgs.h

(limited to 'utils/lbfgs.h')

diff --git a/utils/lbfgs.h b/utils/lbfgs.h
new file mode 100644
index 00000000..ed5cd944
--- /dev/null
+++ b/utils/lbfgs.h
@@ -0,0 +1,19 @@
+#ifndef _LBFGS_H_
+#define _LBFGS_H_
+
+// template<class FuncGrad>
+// std::vector<double>
+// perform_LBFGS(FuncGrad func_grad, const std::vector<double> & x0);
+
+std::vector<double> perform_LBFGS(
+    double (*func_grad)(const std::vector<double> &, std::vector<double> &),
+    const std::vector<double> &x0);
+
+std::vector<double> perform_OWLQN(
+    double (*func_grad)(const std::vector<double> &, std::vector<double> &),
+    const std::vector<double> &x0, const double C);
+
+// const int    LBFGS_M = 7;
+const int LBFGS_M = 10;
+
+#endif
-- 
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