From 4f4c697897b63f7e7717c2dfe6e39a459915208f Mon Sep 17 00:00:00 2001
From: Olivier Parcollet <olivier.parcollet@cea.fr>
Date: Tue, 30 Jul 2013 22:35:31 +0200
Subject: [PATCH] separate some tests in c++11 dir for old compilers.

new policy : for non standard conforming compilers,
we can skip the tests using new features using recent c++ features.
I.e. compilers below gcc 4.8.1, clang 3.3.
---
 CMakeLists.txt                                   |  1 +
 cmake/TRIQSConfig.cmake.in                       |  1 +
 test/triqs/CMakeLists.txt                        | 15 +++++++++++++++
 test/triqs/gf/{ => c++11}/gf_re_im_freq_time.cpp |  0
 triqs/gfs/curry.hpp                              |  8 ++++++--
 5 files changed, 23 insertions(+), 2 deletions(-)
 rename test/triqs/gf/{ => c++11}/gf_re_im_freq_time.cpp (100%)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b6f80e4a..f4c4e7eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -414,6 +414,7 @@ endif (PythonSupport)
 ## Remove the test from the build ?
 option(Build_Triqs_General_Tools_Test "Build the test of the general tool ? ( array class , ... ) " ON)
 if (Build_Triqs_General_Tools_Test)
+ message( STATUS "-------- Preparing tests  -------------")
  add_subdirectory(${TRIQS_SOURCE_DIR}/test ) 
 endif()
 
diff --git a/cmake/TRIQSConfig.cmake.in b/cmake/TRIQSConfig.cmake.in
index e2fc01dc..1b122cb9 100644
--- a/cmake/TRIQSConfig.cmake.in
+++ b/cmake/TRIQSConfig.cmake.in
@@ -32,6 +32,7 @@ set(TRIQS_LIBRARY_GSL     @GSL_LIBRARIES@)
 set(TRIQS_WITH_PYTHON_SUPPORT @TRIQS_WITH_PYTHON_SUPPORT@)
 set(TRIQS_HDF5_DIFF_EXECUTABLE @TRIQS_HDF5_DIFF_EXECUTABLE@)
 set(TRIQS_PYTHON_LIB_DEST @TRIQS_PYTHON_LIB_DEST@)
+set(TRIQS_COMPILER_IS_C11_COMPLIANT @TRIQS_COMPILER_IS_C11_COMPLIANT@)
 
 # for people who want to quickly add everything TRIQS has detected...
 set(TRIQS_LIBRARY_ALL ${TRIQS_LIBRARY} ${TRIQS_LIBRARY_BOOST} ${TRIQS_LIBRARY_PYTHON} ${TRIQS_LIBRARY_MPI} ${TRIQS_LIBRARY_HDF5} ${TRIQS_LIBRARY_LAPACK} ${TRIQS_LIBRARY_FFTW} ${TRIQS_LIBRARY_GMP} ${TRIQS_LIBRARY_GSL} )
diff --git a/test/triqs/CMakeLists.txt b/test/triqs/CMakeLists.txt
index 642a7af5..78cf0f99 100644
--- a/test/triqs/CMakeLists.txt
+++ b/test/triqs/CMakeLists.txt
@@ -15,6 +15,21 @@ macro(all_tests )
   endif()
  ENDFOREACH( TestName1  ${TestList} )
 
+ FILE(GLOB TestList RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} c++11/*.cpp)
+ FOREACH( TestName1  ${TestList} )
+  STRING(REPLACE ".cpp" "" TestName2 ${TestName1})
+  STRING(REPLACE "c++11/" "" TestName ${TestName2})
+  if(TRIQS_COMPILER_IS_C11_COMPLIANT)
+   add_executable( ${TestName}  ${CMAKE_CURRENT_SOURCE_DIR}/c++11/${TestName}.cpp )
+   add_test_C_simple( ${TestName})
+   if (TESTS_C_WITH_VALGRIND)
+    add_test ( ${TestName}_valgrind valgrind --error-exitcode=1 ${CMAKE_CURRENT_BINARY_DIR}/c++11/${TestName})
+   endif()
+  else()
+   MESSAGE(STATUS "WARNING: Deactivating the test ${TestName} : this obsolete compiler does not implement the C++ standard")
+  endif()
+ ENDFOREACH( TestName1  ${TestList} )
+
 endmacro()
 
 add_all_subdirectories_with_cmakelist()
diff --git a/test/triqs/gf/gf_re_im_freq_time.cpp b/test/triqs/gf/c++11/gf_re_im_freq_time.cpp
similarity index 100%
rename from test/triqs/gf/gf_re_im_freq_time.cpp
rename to test/triqs/gf/c++11/gf_re_im_freq_time.cpp
diff --git a/triqs/gfs/curry.hpp b/triqs/gfs/curry.hpp
index 05dcf36c..15864121 100644
--- a/triqs/gfs/curry.hpp
+++ b/triqs/gfs/curry.hpp
@@ -22,6 +22,10 @@
 #define TRIQS_GF_CURRY_H
 #include "./product.hpp"
 
+#ifndef TRIQS_COMPILER_IS_C11_COMPLIANT
+#error "This header requires a fully C++11 compliant compiler"
+#endif
+
 namespace triqs { namespace gfs { 
 
  template<typename F> struct lambda_valued {};
@@ -54,7 +58,7 @@ namespace triqs { namespace gfs {
   //   - m : returns from a CP object the corresponding tuple of meshes of the remaining meshes
   //     after partial eval (of the type computed by "type").
   // - auxiliary data : 
-  //    pos : position in the CP tuple (  CP::size-1 ->0)
+  //    pos : position in the CP tuple (CP::size-1 ->0)
   //    ip : position in the tuple of indices (for sl) 
   //    MP : accumulation of the final type metacomputed.
   //
@@ -77,7 +81,7 @@ namespace triqs { namespace gfs {
   };
 
   template<int pos, int ip, typename CP, typename MP, int ... I> struct pv_impl<pos, ip, CP, MP, pos ,I...> {
-   typedef typename cartesian_product_add_front<typename  std::tuple_element<pos,typename CP::type>::type, MP>::type MP2; 
+   typedef typename cartesian_product_add_front<typename std::tuple_element<pos,typename CP::type>::type, MP>::type MP2; 
    typedef pv_impl<pos-1,ip+1, CP,MP2,I...> B;
    typedef typename B::type type;
    template<typename T, typename IT> static auto sl (T t, IT const & it) DECL_AND_RETURN( B::sl(triqs::tuple::push_front(t,std::get<ip >(it)),it));