| 数据类型名称 | 字节数 | 别名 | 取值范围 |
| int | * | signed,signed int | 由操作系统决定，即与操作系统的＂字长＂有关 |
| unsigned int | * | unsigned | 由操作系统决定，即与操作系统的＂字长＂有关 |
| __int8 | 1 | char,signed char | –128 到 127 |
| __int16 | 2 | short,short int,signed short int | –32,768 到 32,767 |
| __int32 | 4 | signed,signed int | –2,147,483,648 到 2,147,483,647 |
| __int64 | 8 | 无 | –9,223,372,036,854,775,808 到 9,223,372,036,854,775,807 |
| bool | 1 | 无 | false 或 true |
| char | 1 | signed char | –128 到 127 |
| unsigned char | 1 | 无 | 0 到 255 |
| short | 2 | short int,signed short int | –32,768 到 32,767 |
| unsigned short | 2 | unsigned short int | 0 到 65,535 |
| long | 4 | long int,signed long int | –2,147,483,648 到 2,147,483,647 |
| long long | 8 | none (but equivalent to __int64) | –9,223,372,036,854,775,808 到 9,223,372,036,854,775,807 |
| unsigned long | 4 | unsigned long int | 0 到 4,294,967,295 |
| enum | * | 无 | 由操作系统决定，即与操作系统的＂字长＂有关 |
| float | 4 | 无 | 3.4E +/- 38 (7 digits) |
| double | 8 | 无 | 1.7E +/- 308 (15 digits) |
| long double | 8 | 无 | 1.7E +/- 308 (15 digits) |
| unsigned long long | 8 | 9,223,372,036,854,775,807*2 |
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