popenCPP.h

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#ifndef CommonToolsUtils_popenCPP_H
#define CommonToolsUtils_popenCPP_H
#include <memory>
#include <string>
#include <sstream>

namespace reco {
  namespace exprEvalDetails {

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

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

  }  // namespace exprEvalDetails
}  // namespace reco

#endif  // CommonToolsUtils__popenCPP_H