From 5566ff64ebe36222ebadd72e66561cbf0cc0ce18 Mon Sep 17 00:00:00 2001
From: Frank Dellaert <dellaert@gmail.com>
Date: Sat, 22 Jan 2022 11:04:25 -0500
Subject: [PATCH] cpp file for utilities

---
 gtsam/base/utilities.cpp | 13 +++++++++++++
 gtsam/base/utilities.h   | 12 ++++++------
 2 files changed, 19 insertions(+), 6 deletions(-)
 create mode 100644 gtsam/base/utilities.cpp

diff --git a/gtsam/base/utilities.cpp b/gtsam/base/utilities.cpp
new file mode 100644
index 000000000..189156c91
--- /dev/null
+++ b/gtsam/base/utilities.cpp
@@ -0,0 +1,13 @@
+#include <gtsam/base/utilities.h>
+
+namespace gtsam {
+
+std::string RedirectCout::str() const {
+  return ssBuffer_.str();
+}
+
+RedirectCout::~RedirectCout() {
+  std::cout.rdbuf(coutBuffer_);
+}
+
+}
diff --git a/gtsam/base/utilities.h b/gtsam/base/utilities.h
index 8eb5617a8..d9b92b8aa 100644
--- a/gtsam/base/utilities.h
+++ b/gtsam/base/utilities.h
@@ -1,5 +1,9 @@
 #pragma once
 
+#include <string>
+#include <iostream>
+#include <sstream>
+
 namespace gtsam {
 /**
  * For Python __str__().
@@ -12,14 +16,10 @@ struct RedirectCout {
   RedirectCout() : ssBuffer_(), coutBuffer_(std::cout.rdbuf(ssBuffer_.rdbuf())) {}
 
   /// return the string
-  std::string str() const {
-    return ssBuffer_.str();
-  }
+  std::string str() const;
 
   /// destructor -- redirect stdout buffer to its original buffer
-  ~RedirectCout() {
-    std::cout.rdbuf(coutBuffer_);
-  }
+  ~RedirectCout();
 
 private:
   std::stringstream ssBuffer_;