From 0c92f770f2b88ca176a07c2db3fc2e68b422b582 Mon Sep 17 00:00:00 2001
From: Osenberg-Y <osenberg@qq.com>
Date: Fri, 27 Jul 2018 14:50:02 +0800
Subject: [PATCH] Fix make tools compile fail when using opencv2.4.x version

---
 tools/writer/device_writer.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/writer/device_writer.cc b/tools/writer/device_writer.cc
index 5fe2e95..05a4e46 100644
--- a/tools/writer/device_writer.cc
+++ b/tools/writer/device_writer.cc
@@ -311,8 +311,8 @@ DeviceWriter::dev_info_t DeviceWriter::LoadDeviceInfo(
     LOG(FATAL) << "Failed to load file: " << filepath;
   }
   DeviceInfo info;
-  info.lens_type = Type(fs["lens_type"].string());
-  info.imu_type = Type(fs["imu_type"].string());
+  info.lens_type = Type(std::string(fs["lens_type"]));
+  info.imu_type = Type(std::string(fs["imu_type"]));
   fs["nominal_baseline"] >> info.nominal_baseline;
   fs.release();
   return info;