reco::exprEvalDetails Namespace Reference

Functions
std::string	execSysCommand (const std::string &cmdline)
std::unique_ptr< std::istream >	popenCPP (const std::string &cmdline)

Function Documentation

execSysCommand()

std::string reco::exprEvalDetails::execSysCommand ( const std::string &  cmdline )

inline

Definition at line 12 of file popenCPP.h.

References popenCPP().

Referenced by reco::ExpressionEvaluator::ExpressionEvaluator().

                                                              {
      std::ostringstream n1;
      {
        auto s1 = popenCPP(cmdline + " 2>&1");
        n1 << s1->rdbuf();
      }
      return n1.str();
    }

popenCPP()

std::unique_ptr< std::istream > reco::exprEvalDetails::popenCPP

(

const std::string &

cmdline

)

Definition at line 33 of file popenCPP.cc.

References Exception, and f.

Referenced by execSysCommand().

                                                                                {
  FILE *f = popen(cmdline.c_str(), "r");
  if (!f)
    throw cms::Exception("PopenCPP", "(\"" + cmdline + "\") failed");
  return std::unique_ptr<std::istream>(new cfstream(f));
}