Function integerToDouble

external/jsoncpp/jsoncpp.cpp:1561–1563

if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)

}
#else  // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
static inline double integerToDouble(Json::UInt64 value) {
  return static_cast<double>(Int64(value / 2)) * 2.0 + Int64(value & 1);
}

template <typename T> static inline double integerToDouble(T value) {
  return static_cast<double>(value);