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Improve error message. #14246

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merged 2 commits into from
Sep 22, 2022
Merged

Improve error message. #14246

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fbe6b5c
Improve error message.
bangerth Sep 7, 2022
be6ae56
Introduce a new exception for HDF5.
bangerth Sep 21, 2022
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9 changes: 9 additions & 0 deletions include/deal.II/base/exceptions.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1106,6 +1106,15 @@ namespace StandardExceptions
"if deal.II was configured to use LAPACK, but cmake did not "
"find a valid LAPACK library.");

/**
* This function requires support for the HDF5 library.
*/
DeclExceptionMsg(
ExcNeedsHDF5,
"You are attempting to use functionality that requires that deal.II is configured "
"with HDF5 support. However, when you called 'cmake', HDF5 support "
"was not detected.");

/**
* This function requires support for the MPI library.
*/
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2 changes: 1 addition & 1 deletion source/base/data_out_base.cc
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Expand Up @@ -8825,7 +8825,7 @@ DataOutBase::write_hdf5_parallel(
(void)mesh_filename;
(void)solution_filename;
(void)comm;
AssertThrow(false, ExcMessage("HDF5 support is disabled."));
AssertThrow(false, ExcNeedsHDF5());
#else

const unsigned int n_ranks = Utilities::MPI::n_mpi_processes(comm);
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4 changes: 2 additions & 2 deletions source/lac/scalapack.cc
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Expand Up @@ -2611,7 +2611,7 @@ ScaLAPACKMatrix<NumberType>::save(
# ifndef DEAL_II_WITH_HDF5
(void)filename;
(void)chunk_size;
AssertThrow(false, ExcMessage("HDF5 support is disabled."));
AssertThrow(false, ExcNeedsHDF5());
# else

std::pair<unsigned int, unsigned int> chunks_size_ = chunk_size;
Expand Down Expand Up @@ -3043,7 +3043,7 @@ ScaLAPACKMatrix<NumberType>::load(const std::string &filename)
{
# ifndef DEAL_II_WITH_HDF5
(void)filename;
AssertThrow(false, ExcMessage("HDF5 support is disabled."));
AssertThrow(false, ExcNeedsHDF5());
# else
# ifdef H5_HAVE_PARALLEL
// implementation for configurations equipped with a parallel file system
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