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#ifndef TEUCHOS_XML_PARAMETER_LIST_HELPERS_HPP
#define TEUCHOS_XML_PARAMETER_LIST_HELPERS_HPP
/*! \file Teuchos_XMLParameterListHelpers.hpp \brief Additional ParameterList
XML helper functions including parallel support.
*/
#include "Teuchos_XMLParameterListCoreHelpers.hpp"
#include "Teuchos_Comm.hpp"
namespace Teuchos {
/** \brief On processor rank = 0, reads XML parameters from a file
* and broadcasts them to all other processors. Then updates the
* given parameter list with these values.
*
* \param xmlFileName [in] The file name containing XML parameter list
* specification.
*
* \param paramList [in/out] On input, <tt>*paramList</tt> may be empty or
* contain some parameters and sublists. On output, parameters and sublist
* from the file <tt>xmlFileName</tt> will be set or override (or not) those in
* <tt>*paramList</tt> depending on the <tt>overwrite</tt> parameter.
*
* \param comm [in] A Comm object used to broadcast the xml.
*
* \param overwrite [in] If true, parameters and sublists in the <tt>xmlStr</tt>
* will override those in <tt>paramList</tt>. If false, any value set in
* <tt>paramList</tt> will be kept, only values not set will be updated.
*
* \relates ParameterList
*/
TEUCHOSCOMM_LIB_DLL_EXPORT
void updateParametersFromXmlFileAndBroadcast(
const std::string &xmlFileName,
const Ptr<ParameterList> ¶mList,
const Comm<int> &comm,
bool overwrite = true
);
} // namespace Teuchos
#endif // TEUCHOS_XML_PARAMETER_LIST_HELPERS_HPP
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