Function GetDouble

rapidjson/document.h:1695–1702

Get the value as double type. ! \note If the value is 64-bit integer type, it may lose precision. Use \c IsLosslessDouble() to check whether the converison is lossless. */

    /*! \note If the value is 64-bit integer type, it may lose precision. Use \c IsLosslessDouble() to check whether the converison is lossless.
    */
    double GetDouble() const {
        RAPIDJSON_ASSERT(IsNumber());
        if ((data_.f.flags & kDoubleFlag) != 0)                return data_.n.d;   // exact type, no conversion.
        if ((data_.f.flags & kIntFlag) != 0)                   return data_.n.i.i; // int -> double
        if ((data_.f.flags & kUintFlag) != 0)                  return data_.n.u.u; // unsigned -> double
        if ((data_.f.flags & kInt64Flag) != 0)                 return static_cast<double>(data_.n.i64); // int64_t -> double (may lose precision)
        RAPIDJSON_ASSERT((data_.f.flags & kUint64Flag) != 0);  return static_cast<double>(data_.n.u64); // uint64_t -> double (may lose precision)
    }

    //! Get the value as float type.
    /*! \note If the value is 64-bit integer type, it may lose precision. Use \c IsLosslessFloat() to check whether the converison is lossless.