Disabled warning C4251 Added the files disable_warnings.h and reenable_warnings.h which need to be included by every file that uses the macro CERES_EXPORT. Change-Id: I176326a600d094a4524bac873564fcbf8efd2456

diff --git a/include/ceres/c_api.h b/include/ceres/c_api.h
index 632542e..71f41fd 100644
--- a/include/ceres/c_api.h
+++ b/include/ceres/c_api.h

@@ -39,6 +39,7 @@
 #define CERES_PUBLIC_C_API_H_
 
 #include "ceres/internal/port.h"
+#include "ceres/internal/disable_warnings.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -140,4 +141,6 @@
 }
 #endif
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  /* CERES_PUBLIC_C_API_H_ */

diff --git a/include/ceres/conditioned_cost_function.h b/include/ceres/conditioned_cost_function.h
index 2a12ba6..3f0087c 100644
--- a/include/ceres/conditioned_cost_function.h
+++ b/include/ceres/conditioned_cost_function.h

@@ -39,6 +39,7 @@
 #include "ceres/cost_function.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/types.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -93,5 +94,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
 
 #endif  // CERES_PUBLIC_CONDITIONED_COST_FUNCTION_H_

diff --git a/include/ceres/cost_function.h b/include/ceres/cost_function.h
index fee3e73..45292ec 100644
--- a/include/ceres/cost_function.h
+++ b/include/ceres/cost_function.h

@@ -48,6 +48,7 @@
 #include "ceres/internal/macros.h"
 #include "ceres/internal/port.h"
 #include "ceres/types.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -142,4 +143,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_COST_FUNCTION_H_

diff --git a/include/ceres/covariance.h b/include/ceres/covariance.h
index b6e9a6a..245381a 100644
--- a/include/ceres/covariance.h
+++ b/include/ceres/covariance.h

@@ -36,6 +36,7 @@
 #include "ceres/internal/port.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/types.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -419,4 +420,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_COVARIANCE_H_

diff --git a/include/ceres/crs_matrix.h b/include/ceres/crs_matrix.h
index 687c958..d2d6289 100644
--- a/include/ceres/crs_matrix.h
+++ b/include/ceres/crs_matrix.h

@@ -33,6 +33,7 @@
 
 #include <vector>
 #include "ceres/internal/port.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -80,4 +81,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_CRS_MATRIX_H_

diff --git a/include/ceres/internal/disable_warnings.h b/include/ceres/internal/disable_warnings.h
new file mode 100644
index 0000000..78924de
--- /dev/null
+++ b/include/ceres/internal/disable_warnings.h

@@ -0,0 +1,44 @@
+// Ceres Solver - A fast non-linear least squares minimizer
+// Copyright 2014 Google Inc. All rights reserved.
+// http://code.google.com/p/ceres-solver/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors may be
+//   used to endorse or promote products derived from this software without
+//   specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// This file has the sole purpose to silence warnings when including Ceres.
+
+// This is not your usual header guard. The macro CERES_WARNINGS_DISABLED
+// shows up again in reenable_warnings.h.
+#ifndef CERES_WARNINGS_DISABLED
+#define CERES_WARNINGS_DISABLED
+
+#ifdef _MSC_VER
+#pragma warning( push )
+// Disable the warning C4251 which is trigerred by stl classes in
+// Ceres' public interface. To quote MSDN: "C4251 can be ignored "
+// "if you are deriving from a type in the Standard C++ Library"
+#pragma warning( disable : 4251 )
+#endif
+
+#endif  // CERES_WARNINGS_DISABLED

diff --git a/include/ceres/internal/reenable_warnings.h b/include/ceres/internal/reenable_warnings.h
new file mode 100644
index 0000000..1f477d8
--- /dev/null
+++ b/include/ceres/internal/reenable_warnings.h

@@ -0,0 +1,38 @@
+// Ceres Solver - A fast non-linear least squares minimizer
+// Copyright 2014 Google Inc. All rights reserved.
+// http://code.google.com/p/ceres-solver/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors may be
+//   used to endorse or promote products derived from this software without
+//   specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+
+// This is not your usual header guard. See disable_warnings.h
+#ifdef CERES_WARNINGS_DISABLED
+#undef CERES_WARNINGS_DISABLED
+
+#ifdef _MSC_VER
+#pragma warning( pop )
+#endif
+
+#endif  // CERES_WARNINGS_DISABLED

diff --git a/include/ceres/iteration_callback.h b/include/ceres/iteration_callback.h
index 5eca392..237ada6 100644
--- a/include/ceres/iteration_callback.h
+++ b/include/ceres/iteration_callback.h

@@ -36,6 +36,7 @@
 #define CERES_PUBLIC_ITERATION_CALLBACK_H_
 
 #include "ceres/types.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -219,4 +220,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_ITERATION_CALLBACK_H_

diff --git a/include/ceres/local_parameterization.h b/include/ceres/local_parameterization.h
index ecac5ba..3ab21fc 100644
--- a/include/ceres/local_parameterization.h
+++ b/include/ceres/local_parameterization.h

@@ -34,6 +34,7 @@
 
 #include <vector>
 #include "ceres/internal/port.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -188,4 +189,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_LOCAL_PARAMETERIZATION_H_

diff --git a/include/ceres/loss_function.h b/include/ceres/loss_function.h
index 5b6bf68..2c58500 100644
--- a/include/ceres/loss_function.h
+++ b/include/ceres/loss_function.h

@@ -75,10 +75,11 @@
 #ifndef CERES_PUBLIC_LOSS_FUNCTION_H_
 #define CERES_PUBLIC_LOSS_FUNCTION_H_
 
+#include "glog/logging.h"
 #include "ceres/internal/macros.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/types.h"
-#include "glog/logging.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -395,4 +396,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/disable_warnings.h"
+
 #endif  // CERES_PUBLIC_LOSS_FUNCTION_H_

diff --git a/include/ceres/normal_prior.h b/include/ceres/normal_prior.h
index 530e652..df66505 100644
--- a/include/ceres/normal_prior.h
+++ b/include/ceres/normal_prior.h

@@ -36,6 +36,7 @@
 
 #include "ceres/cost_function.h"
 #include "ceres/internal/eigen.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -72,4 +73,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_NORMAL_PRIOR_H_

diff --git a/include/ceres/problem.h b/include/ceres/problem.h
index 5881677..b1cb99a 100644
--- a/include/ceres/problem.h
+++ b/include/ceres/problem.h

@@ -39,11 +39,12 @@
 #include <set>
 #include <vector>
 
+#include "glog/logging.h"
 #include "ceres/internal/macros.h"
 #include "ceres/internal/port.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/types.h"
-#include "glog/logging.h"
+#include "ceres/internal/disable_warnings.h"
 
 
 namespace ceres {
@@ -466,4 +467,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_PROBLEM_H_

diff --git a/include/ceres/solver.h b/include/ceres/solver.h
index fc70073..a2d9834 100644
--- a/include/ceres/solver.h
+++ b/include/ceres/solver.h

@@ -40,6 +40,7 @@
 #include "ceres/iteration_callback.h"
 #include "ceres/ordered_groups.h"
 #include "ceres/types.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -957,4 +958,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_SOLVER_H_

diff --git a/include/ceres/types.h b/include/ceres/types.h
index ff31d45..9e91246 100644
--- a/include/ceres/types.h
+++ b/include/ceres/types.h

@@ -40,6 +40,7 @@
 #include <string>
 
 #include "ceres/internal/port.h"
+#include "ceres/internal/disable_warnings.h"
 
 namespace ceres {
 
@@ -475,4 +476,6 @@
 
 }  // namespace ceres
 
+#include "ceres/internal/reenable_warnings.h"
+
 #endif  // CERES_PUBLIC_TYPES_H_