Problem::Evaluate implementation.
1. Add Problem::Evaluate and tests.
2. Remove Solver::Summary::initial/final_*
3. Remove Solver::Options::return_* members.
4. Various cpplint cleanups.
Change-Id: I4266de53489896f72d9c6798c5efde6748d68a47
diff --git a/internal/ceres/stl_util.h b/internal/ceres/stl_util.h
index b23e7c1..08f15ec 100644
--- a/internal/ceres/stl_util.h
+++ b/internal/ceres/stl_util.h
@@ -31,6 +31,8 @@
#ifndef CERES_INTERNAL_STL_UTIL_H_
#define CERES_INTERNAL_STL_UTIL_H_
+#include <algorithm>
+
namespace ceres {
// STLDeleteContainerPointers()
