REFAC: move GetProcFromDivision from header to txx file

Modules/MPI/MPITiffWriter/include/otbSimpleParallelTiffWriter.h

@@ -269,12 +269,7 @@ private:
 	/*
 	 * Returns the process id which process a given region
 	 */
-	unsigned int GetProcFromDivision(unsigned int regionIndex)
-	{
-		if (otb::MPIConfig::Instance()->GetNbProcs()==0)
-			return 0;
-		return ( regionIndex % otb::MPIConfig::Instance()->GetNbProcs());
-	}
+	unsigned int GetProcFromDivision(unsigned int regionIndex);
 
 	/*
 	 * Arranges the splitting layout to match the number of MPI processes

Modules/MPI/MPITiffWriter/include/otbSimpleParallelTiffWriter.txx

@@ -64,6 +64,16 @@ SimpleParallelTiffWriter<TInputImage>
 {
 }
 
+template <class TInputImage>
+unsigned int
+SimpleParallelTiffWriter<TInputImage>
+::GetProcFromDivision(unsigned int regionIndex)
+{
+	if (otb::MPIConfig::Instance()->GetNbProcs()==0)
+		return 0;
+	return ( regionIndex % otb::MPIConfig::Instance()->GetNbProcs());
+}
+
 /*
  * Arranges the splitting layout to match the number of MPI processes
  */