operator()()

intT GSE2::waveform::TDAT2read::operator() ( std::istream &  is )

inherited

get another value from the stream

Definition at line 122 of file gsexx_TDAT2.cc.

References GSE2::waveform::TDAT2sum::add(), GSE2::waveform::TDAT2sum::checksum(), GSE2::waveform::TDAT2read::convert(), GSE2::waveform::TDAT2sum::hot(), GSE2::waveform::TDAT2sum::nread(), GSE2::waveform::TCHK2::read(), GSE2::Terror::silent, and GSE2::waveform::TCHK2::value().

{
  intT retval;
  // check for DAT2 line
  if (this->TDAT2sum::nread() == 0) 
  { 
    std::string lineID;
    is >> lineID;
    if (!GSEIDmatch<TDAT2sum>(lineID)) throw
      Terror("ERROR (TDAT2::read): missing DAT2 line!");
    char c=' ';
    while (c != '\n') { is.get(c); }
  }

  if (!this->TDAT2sum::hot()) throw 
    Terror("ERROR (TDAT2::read): requesting more samples than specified!");
  retval=convert(is);
  this->TDAT2sum::add(retval);

  // check checksum
  if (!TDAT2sum::hot()) {
    TCHK2 checksum;
    checksum.read(is);
    if (this->TDAT2sum::checksum().value()!=checksum.value())
    {
      if (!Terror::silent)
      {
        std::cerr << "checksum read: " << checksum.value()
          << " calculated: " << this->TDAT2sum::checksum().value()
          << std::endl;
      }
      throw
      Terror("ERROR (TDAT2::read): conflicting checksum in CHK2 line!");
    }
  }
  return(retval);
}

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