reco::exprEvalDetails Namespace Reference

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

Function Documentation

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

inline

Definition at line 14 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();
    }

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

(

const std::string &

cmdline

)

Definition at line 31 of file popenCPP.cc.

References EnergyCorrector::c, Exception, f, FrontierConditions_GlobalTag_cff::file, gen::n, and alignCSCRings::s.

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));
}