diff --git a/src/algo.hpp b/src/algo.hpp
index be03a77..5f896ef 100644
--- a/src/algo.hpp
+++ b/src/algo.hpp
@@ -7,16 +7,16 @@ This software is a computer program whose purpose is to provide a toolbox for co
 data analysis (e.g. filters, generalized Fourier transforms, power spectra, ...)
 
 This software is governed by the CeCILL license under French law and
-abiding by the rules of distribution of free software.  You can  use, 
+abiding by the rules of distribution of free software.  You can  use,
 modify and/ or redistribute the software under the terms of the CeCILL
 license as circulated by CEA, CNRS and INRIA at the following URL
-"http://www.cecill.info". 
+"http://www.cecill.info".
 
 As a counterpart to the access to the source code and  rights to copy,
 modify and redistribute granted by the license, users are provided only
 with a limited warranty  and the software's author,  the holder of the
 economic rights,  and the successive licensors  have only  limited
-liability. 
+liability.
 
 In this respect, the user's attention is drawn to the risks associated
 with loading,  using,  modifying and/or developing or reproducing the
@@ -25,9 +25,9 @@ that may mean  that it is complicated to manipulate,  and  that  also
 therefore means  that it is reserved for developers  and  experienced
 professionals having in-depth computer knowledge. Users are therefore
 encouraged to load and test the software's suitability as regards their
-requirements in conditions enabling the security of their systems and/or 
-data to be ensured and,  more generally, to use and operate it in the 
-same conditions as regards security. 
+requirements in conditions enabling the security of their systems and/or
+data to be ensured and,  more generally, to use and operate it in the
+same conditions as regards security.
 
 The fact that you are presently reading this means that you have had
 knowledge of the CeCILL license and that you accept its terms.
@@ -65,10 +65,10 @@ namespace  CosmoTool
           return 1/SPowerBase<-N>::spower(a);
         }
       if ((N%2)==0)
-	{
-	  T b = SPowerBase<N/2>::spower(a);
-	  return b*b;
-	}
+        {
+          T b = SPowerBase<N/2>::spower(a);
+          return b*b;
+        }
       T b = SPowerBase<(N-1)/2>::spower(a);
       return a*b*b;
     }
diff --git a/src/fourier/fft/fftw_calls.hpp b/src/fourier/fft/fftw_calls.hpp
index d3f2d10..16426cf 100644
--- a/src/fourier/fft/fftw_calls.hpp
+++ b/src/fourier/fft/fftw_calls.hpp
@@ -73,6 +73,7 @@ public: \
   static void execute_c2r(plan_type p, complex_type *in, real_type *out) { prefix ## _execute_dft_c2r(p, in, out); } \
   static void execute_r2c(plan_type p, real_type *in, std::complex<real_type> *out) { prefix ## _execute_dft_r2c(p, in, (complex_type*)out); } \
   static void execute_c2r(plan_type p, std::complex<real_type> *in, real_type *out) { prefix ## _execute_dft_c2r(p, (complex_type*) in, out); } \
+  static void execute_c2c(plan_type p, std::complex<real_type> *in, std::complex<real_type> *out) { prefix ## _execute_dft(p, (complex_type *)in, (complex_type*)out); } \
   static plan_type plan_dft_r2c_2d(int Nx, int Ny,  \
 		       real_type *in, complex_type *out, \
 		       unsigned flags) \
@@ -110,6 +111,9 @@ public: \
   { \
     return prefix ## _plan_dft_c2r(rank, n, in, out, flags); \
   } \
+  static plan_type plan_dft_3d(int Nx, int Ny, int Nz, complex_type *in, complex_type *out, int sign, unsigned flags) { \
+    return prefix ## _plan_dft_3d(Nx, Ny, Nz, in, out, sign, flags); \
+  } \
   static void destroy_plan(plan_type plan) { prefix ## _destroy_plan(plan); } \
 }
 
diff --git a/src/fourier/fft/fftw_calls_mpi.hpp b/src/fourier/fft/fftw_calls_mpi.hpp
index 7a4cf0c..eb12d88 100644
--- a/src/fourier/fft/fftw_calls_mpi.hpp
+++ b/src/fourier/fft/fftw_calls_mpi.hpp
@@ -49,6 +49,7 @@ public: \
   } \
 \
   static void execute(plan_type p) { prefix ## _execute(p); } \
+  static void execute_c2c(plan_type p, complex_type *in, complex_type *out) { prefix ## _mpi_execute_dft(p, in, out); } \
   static void execute_r2c(plan_type p, real_type *in, complex_type *out) { prefix ## _mpi_execute_dft_r2c(p, in, out); } \
   static void execute_c2r(plan_type p, std::complex<real_type> *in, real_type *out) { prefix ## _mpi_execute_dft_c2r(p, (complex_type*)in, out); } \
   static void execute_c2r(plan_type p, complex_type *in, real_type *out) { prefix ## _mpi_execute_dft_c2r(p, in, out); } \
@@ -92,6 +93,9 @@ public: \
   { \
     return prefix ## _mpi_plan_dft_c2r(rank, n, in, out, comm, flags); \
   } \
+  static plan_type plan_dft_3d(int Nx, int Ny, int Nz, complex_type *in, complex_type *out, MPI_Comm comm, int sign, unsigned flags) { \
+    return prefix ## _mpi_plan_dft_3d(Nx, Ny, Nz, in, out, comm, sign, flags); \
+  } \
   static void destroy_plan(plan_type plan) { prefix ## _destroy_plan(plan); } \
 }