explicitly include <iostream>

instead of relying on relying that some header includes it...

examples/test_impestpfa_ad.cpp

@@ -41,6 +41,7 @@
 #include <opm/core/wells.h>
 
 #include <algorithm>
+#include <iostream>
 
 
 

examples/test_implicit_ad.cpp

@@ -40,10 +40,12 @@
 #include <opm/core/simulator/WellState.hpp>
 #include <opm/core/simulator/initState.hpp>
 
-#include <algorithm>
-
 #include <boost/shared_ptr.hpp>
 
+#include <algorithm>
+#include <iostream>
+
+
 namespace {
     boost::shared_ptr<Wells>
     createWellConfig()

opm/autodiff/AutoDiffHelpers.hpp

@@ -24,6 +24,8 @@
 #include <opm/core/grid.h>
 #include <opm/core/utility/ErrorMacros.hpp>
 
+#include <iostream>
+
 // -------------------- class HelperOps --------------------
 
 /// Contains vectors and sparse matrices that represent subsets or

opm/autodiff/FullyImplicitBlackoilSolver.cpp

@@ -34,6 +34,7 @@
 
 #include <cassert>
 #include <cmath>
+#include <iostream>
 #include <iomanip>
 
 #define DUMP(foo)                                                       \

opm/autodiff/ImpesTPFAAD.cpp

@@ -26,6 +26,7 @@
 #include <opm/core/linalg/LinearSolverInterface.hpp>
 #include <opm/core/wells.h>
 
+#include <iostream>
 #include <iomanip>
 
 

opm/autodiff/SimulatorCompressibleAd.cpp

@@ -56,6 +56,7 @@
 
 #include <numeric>
 #include <fstream>
+#include <iostream>
 
 
 namespace Opm

opm/autodiff/SimulatorFullyImplicitBlackoil.cpp

@@ -56,6 +56,7 @@
 
 #include <numeric>
 #include <fstream>
+#include <iostream>
 
 
 namespace Opm

opm/autodiff/SimulatorIncompTwophaseAdfi.cpp

@@ -54,6 +54,7 @@
 
 #include <numeric>
 #include <fstream>
+#include <iostream>
 
 
 namespace Opm

tests/test_boprops_ad.cpp

@@ -37,6 +37,8 @@
 #include <opm/core/utility/parameters/ParameterGroup.hpp>
 
 #include <fstream>
+#include <iostream>
+
 
 struct SetupSimple {
     SetupSimple()

tests/test_scalar_mult.cpp

@@ -32,7 +32,7 @@
 #include <Eigen/Eigen>
 #include <Eigen/Sparse>
 
-
+#include <iostream>
 
 BOOST_AUTO_TEST_CASE(ScalarMultiplication)
 {

tests/test_span.cpp

@@ -30,6 +30,7 @@
 
 #include <boost/test/unit_test.hpp>
 
+#include <iostream>
 
 BOOST_AUTO_TEST_CASE(OneArgConstr)
 {

tests/test_syntax.cpp

@@ -8,9 +8,11 @@
 
 #include <opm/autodiff/AutoDiff.hpp>
 
-#include <cmath>
 #include <boost/test/unit_test.hpp>
 
+#include <cmath>
+#include <iostream>
+
 BOOST_AUTO_TEST_CASE(Initialisation)
 {
     typedef AutoDiff::Forward<double> AdFW;