29ff7bfbb3
Add a match_size function. This function match depending on the language, the kind of data required and the size. Special care should be taken for C++ if we are looking for integer or real types as C++ can return C datatypes. We use MPI_DATATYPE_NULL as a return error if there is no matching datatype. This commit was SVN r4496.
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...more to write here
should be a short file, referring to the real docs.