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GRBsetcharattrlist

int	GRBsetcharattrlist (	GRBmodel	*model,
		const char	*attrname,
		int	len,
		int	*ind,
		char	*values )

Set the values of a character-valued array attribute.

Return value:

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

Arguments:

model: A loaded optimization model, typically created by routine GRBnewmodel or GRBreadmodel.

attrname: The name of a character-valued array attribute. Available attributes are listed and described in the Attributes section of this document.

len: The number of array entries to set.

ind: The indices of the array attribute elements that will be set.

values: A pointer to the desired new values for the specified elements of the attribute. Note that the values array must be as long as the list of indices.

Example usage:

  int change[] = {0, 1, 3};
  char vtypes[] = {GRB_BINARY, GRB_BINARY, GRB_BINARY};
  error = GRBsetcharattrlist(model, "Vtype", 3, change, vtypes);