cout<<enumSample1<<endl; cout<<"sizeof(Class A) = "<<sizeof(A)<<endl; cout<<"sizeof(Class B) = "<<sizeof(B)<<endl; return0; } 运行结果: 最后,给你提供好的参考资料: what is the size of an enum type data in C++? 2 个人觉得谈论enum的内存分布没有太大的意义,因为enum中的值...
PublicClassEggEnumEggSizeEnum Jumbo ExtraLarge Large Medium SmallEndEnumPublicSubPoach()DimsizeAsEggSizeEnum size = EggSizeEnum.Medium' Continue processing...EndSubEndClass 示例2 以下示例中的方法在Egg类外部。 因此,EggSizeEnum完全限定为Egg.EggSizeEnum。
enumerator NPP_DATA_TYPE_ERROR enumerator NPP_OUT_OFF_RANGE_ERROR enumerator NPP_DIVIDE_BY_ZERO_ERROR enumerator NPP_MEMORY_ALLOCATION_ERR enumerator NPP_NULL_POINTER_ERROR enumerator NPP_RANGE_ERROR enumerator NPP_SIZE_ERROR enumerator NPP_BAD_ARGUMENT_ERROR ...
mysql> select concat(round(sum(data_length/1024/1024),3),'MB') as data_size, -> concat(round(sum(max_data_length/1024/1024),3),'MB') as max_data_length, -> concat(round(sum(data_free/1024/1024),3),'MB') as data_free, -> concat(round(sum(index_length/1024/1024),3),'MB...
A normal-size (double-precision) floating-point number. Allowable values are -1.7976931348623157E+308 to -2.2250738585072014E-308, 0, and 2.2250738585072014E-308 to 1.7976931348623157E+308. Enum An enumeration. A string object that can have only one value, chosen from the list of values 'value1...
Case Else Throw New ApplicationException("size is invalid: " & size.ToString) End Select End Sub Example 3 The following example uses the Enum statement to define a related set of named constant values. In this case, the values are colors you might choose to design data entry forms for ...
enumerator NPP_DATA_TYPE_ERROR enumerator NPP_OUT_OFF_RANGE_ERROR enumerator NPP_DIVIDE_BY_ZERO_ERROR enumerator NPP_MEMORY_ALLOCATION_ERR enumerator NPP_NULL_POINTER_ERROR enumerator NPP_RANGE_ERROR enumerator NPP_SIZE_ERROR enumerator NPP_BAD_ARGUMENT_ERROR ...
SET@mysize='medium';CREATETABLEsizes(sizeENUM('small',@mysize,'large')); We strongly recommend that you donotuse numbers as enumeration values, because it does not save on storage over the appropriateTINYINTorSMALLINTtype, and it is easy to mix up the strings and the underlying number va...
Arrayof typeByte. Automatically generated binary numbers, which are guaranteed to be unique within a database.timestampis used typically as a mechanism for version-stamping table rows. The storage size is 8 bytes. TinyInt20 Byte. An 8-bit unsigned integer. ...
of the database, with a maximum size of 2,000 bytes (not characters) when stored in the database. The size of the value depends on the national character set of the database. See your Oracle documentation for more information. Use the .NETStringor OracleClientOracleStringdata type inValue...