17#include <boost/logic/tribool.hpp> 
   40  using TriBool = boost::logic::tribool;
 
   41  using   boost::logic::tribool;
 
   42  using   boost::logic::indeterminate;
 
   44  inline std::string 
asString( 
const TriBool & val_r, 
const std::string & istr_r = std::string(),
 
   45                                                      const std::string & tstr_r = std::string(),
 
   46                                                      const std::string & fstr_r = std::string() )
 
   49    if (indeterminate(val_r))
 
   50      ret = ( istr_r.empty() ? 
"indeterminate" : istr_r );
 
   52      ret = ( tstr_r.empty() ? 
"true" : tstr_r );
 
   54      ret = ( fstr_r.empty() ? 
"false" : fstr_r );
 
 
   60  { 
return indeterminate(val_r) ? default_r : 
bool(val_r); }
 
 
   70      inline std::ostream & 
operator<<(std::ostream & s, 
const tribool & obj)
 
   74      inline bool sameTriboolState( tribool lhs, tribool rhs )
 
   75      { 
return( ( indeterminate(lhs) && indeterminate(rhs) ) || ( 
bool )( lhs == rhs ) ); }
 
std::ostream & operator<<(std::ostream &str, const zypp::sat::detail::CDataiterator *obj)
Easy-to use interface to the ZYPP dependency resolver.
bool tri2bool(const TriBool &val_r, bool default_r)
Convert TriBool to bool returning default_r if indeterminate.
boost::logic::tribool TriBool
3-state boolean logic (true, false and indeterminate).
std::string asString(const Patch::Category &obj)