[Dune] [#379] writeMatrixToMatlab for std::complex not Matlab-readable

[Dune]

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User who did this - Patrick Leidenberger (leidenberger) 

Attached to Project - Dune
Summary - writeMatrixToMatlab for std::complex not Matlab-readable
Task Type - Bug Report
Category - ISTL
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN
Due in Version - Undecided
Due Date - Undecided
Details - Dune::writeMatrixToMatlab has some problems if the values in a Matrix are of type std::complex. The file output look like this:
1 1 (0.5,0.2)
1 3 (0.5,0.2)
...

But this is not Matlab-readable, for Matlab it needs to have four plain columns, like this:
1 1 0.5 0.2 
1 3 0.5 0.2
...
cf. e.g. http://www.mathworks.com/access/helpdesk/help/techdoc/index.html?/access/helpdesk/help/techdoc/ref/spconvert.html

The problem is the << operator for complex:
s << rowOffset + i + 1 << " " << colOffset + j + 1 << " " << matrix[i][j] << std::endl;

file: istl/io.hh line 320


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http://conan.informatik.uni-stuttgart.de/flyspray/index.php?do=details&task_id=379

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