FullMatirx.vmult for vectors based on std::complex<double>

diff --git a/source/lac/full_matrix.cc b/source/lac/full_matrix.cc
index 84425d80e046f7df9eb26bd1ab748cbd516ac06a..b7d468bca9aba36f5e5940926402d948a10cccd8 100644 (file)
--- a/source/lac/full_matrix.cc
+++ b/source/lac/full_matrix.cc
@@ -20,6 +20,10 @@ DEAL_II_NAMESPACE_OPEN
 
 #include "full_matrix.inst"
 
+// This is needed if PETSc was compiled with complex, though, it may
+// be used elsewhere too.
+template void dealii::FullMatrix<double>::vmult<std::complex<double> >(dealii::Vector<std::complex<double> > &, dealii::Vector<std::complex<double> > const &, bool) const;
+
 // do a few functions that currently don't fit the scheme because they have
 // two template arguments that need to be different (the case of same
 // arguments is covered by the default copy constructor and copy operator that