Method append

runtime/common/SampleResult.cpp:192–220

}

void sample_result::append(const ExecutionResult &result, bool concatenate) {
  // If given a result corresponding to the same register name, either a)
  // replace the existing one if concatenate is false, or b) if concatenate is
  // true, stitch the bitstrings from "result" into the existing one.
  auto iter = sampleResults.find(result.registerName);
  if (iter != sampleResults.end()) {
    auto &existingExecResult = iter->second;
    if (concatenate) {
      // Stitch the bitstrings together
      if (this->totalShots == result.sequentialData.size()) {
        existingExecResult.counts.clear();
        for (std::size_t i = 0; i < this->totalShots; i++) {
          std::string newStr =
              existingExecResult.sequentialData[i] + result.sequentialData[i];
          existingExecResult.counts[newStr]++;
          existingExecResult.sequentialData[i] = std::move(newStr);
        }
      }
    } else {
      // Replace the existing one
      existingExecResult = result;
    }
  } else {
    sampleResults.insert({result.registerName, result});
  }
  if (!totalShots)
    for (auto &[bits, count] : result.counts)
      totalShots += count;
}

bool sample_result::operator==(const sample_result &counts) const {
  return sampleResults == counts.sampleResults;