fixing multiple translation unit proble. Closes #309.

libmpdata++/formulae/arakawa_c.hpp

@@ -12,7 +12,9 @@ namespace libmpdataxx
 {
   namespace arakawa_c
   {
-    struct hlf_t {} h; 
+    namespace {
+      struct hlf_t {} h; 
+    }
 
     inline rng_t operator+(
       const rng_t &i, const hlf_t &

libmpdata++/output/detail/xdmf_writer.hpp

@@ -13,7 +13,7 @@ namespace libmpdataxx
 {
   namespace output
   {
-    namespace detail
+    namespace detail { namespace 
     {
       template<int dim>
       class xdmf_writer
@@ -201,6 +201,6 @@ namespace libmpdataxx
       const std::string xdmf_writer<dim>::name = "Grid";
       template<int dim>
       const std::string xdmf_writer<dim>::grid_type = "Uniform";
-    }
+    }}
   }
 }

libmpdata++/solvers/detail/monitor.hpp

@@ -14,7 +14,7 @@ namespace libmpdataxx
 {
   namespace solvers
   {
-    namespace detail
+    namespace detail { namespace 
     {
       void monitor(float frac)
       {
@@ -38,7 +38,7 @@ namespace libmpdataxx
 #elif defined(HAVE_PTHREAD_SETNAME_NP) && defined(HAVE_PTHREAD_GETNAME_NP)
         pthread_setname_np(name);
 #endif
-      }
+      }}
     };
   };
 };

tests/unit/CMakeLists.txt

@@ -41,3 +41,4 @@ add_subdirectory(concurrent_1d)
 add_subdirectory(hint_scale)
 add_subdirectory(hdf5_catch)
 add_subdirectory(git_revision)
+add_subdirectory(mltpl_transl_unit)

tests/unit/mltpl_transl_unit/CMakeLists.txt

@@ -0,0 +1,4 @@
+# this is a compile-only test, nothing us run during "make test"
+add_executable(mltpl_transl_unit test_mltpl_transl_unit.cpp u1.cpp u2.cpp)
+target_link_libraries(mltpl_transl_unit ${libmpdataxx_LIBRARIES})                       
+target_include_directories(mltpl_transl_unit PUBLIC ${libmpdataxx_INCLUDE_DIRS})

tests/unit/mltpl_transl_unit/test_mltpl_transl_unit.cpp

@@ -0,0 +1 @@
+int main() {}

tests/unit/mltpl_transl_unit/test_mltpl_transl_unit.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <libmpdata++/solvers/mpdata.hpp>
+#include <libmpdata++/output/hdf5_xdmf.hpp>
+
+struct ct_params_t : libmpdataxx::ct_params_default_t
+{
+  enum { n_dims = 3 };
+  enum { n_eqns = 3 };
+  using real_t = double;
+};
+
+using slv_out_t = libmpdataxx::output::hdf5_xdmf<
+  libmpdataxx::solvers::mpdata<
+    ct_params_t
+  >
+>;

tests/unit/mltpl_transl_unit/u1.cpp

@@ -0,0 +1,3 @@
+#include "test_mltpl_transl_unit.hpp"
+
+slv_out_t s1(slv_out_t::rt_params_t());

tests/unit/mltpl_transl_unit/u2.cpp

@@ -0,0 +1,3 @@
+#include "test_mltpl_transl_unit.hpp"
+
+slv_out_t s2(slv_out_t::rt_params_t());