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int GRBread ( GRBmodel *model,
    const char *filename )

This method is the general entry point for importing data from a file into a model. It can be used to read basis files for continuous models, start vectors for MIP models, or parameter settings. The type of data read is determined by the file suffix. File formats are described in the File Format section.

Note that reading a file does not process all pending model modifications. These modifications can be processed by calling GRBupdatemodel.

Note also that this is not the method to use if you want to read a new model from a file. For that, use the GRBreadmodel routine.

Return value:

A non-zero return value indicates that a problem occurred while reading the file. Refer to the Error Code table for a list of possible return values. Details on the error can be obtained by calling GRBgeterrormsg.


model: The model that will receive the information read from the file.

filename: The path to the file to be read. The suffix on the file must be either .mst or .sol for a MIP start file, .hnt for a MIP hint file, .ord for a priority order file, .bas for a basis file, or .prm for a parameter file, The suffix may optionally be followed by .zip, .gz, .bz2, or .7z.

Example usage:

  error = GRBread(model, "/tmp/model.mst.bz2");

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