什么是＆QUOT;扩展整型＆QUOT;？ [英] What are "extended integer types"?

问题描述

这本书我读报价：

  

  
1. 符号的字符，签短整型，符号整数，签订长整型，签订了长整型被称为标准符号整型

  
2. unsigned char型，unsinged短整型，无符号整型，unsigned long int类型，unsinged得到long long int，_Bool 被称为标准符号
     整型

  
3. 在除了标准的整数类型，C99标准允许实现定义的扩展整型后，双方签字和
     无符号。例如，编译器可能会提供签名和未签名
     128位的整数类型。

  

我和第3点的问题。这些是什么扩展整数类型？任何的例子吗？

解决方案

扩展的整数类型的一个例子是 __的Int64 64位有符号整数通过微软的Visual定义的类型C.虽然这种类型的显然是它无法为 INT ，获得整型，在旧版本的MSVC长整型，也不得到long long int 。 （MSVC添加在此期间为支持得到long long int ）

Quoting from the book I'm reading:

1. signed char, signed short int, signed int, signed long int, signed long long int are called standard signed integer types
2. unsigned char, unsinged short int, unsigned int, unsigned long int, unsinged long long int, _Bool are called standard unsigned integer types
3. In addition to the standard integer types, the C99 standard allows implementation-defined extended integer types, both signed and unsigned. For example, a compiler might be provide signed and unsigned 128-bit integer types.

I've problem with 3rd point. What are these "extended integer types"? Any examples?

解决方案

An example of the extended integer type is the __int64 64-bit signed integer type defined by MS Visual C. While this type is obviously an integral type, in older versions of MSVC it could not be obtained as int, long int, nor long long int. (MSVC added support for long long int in the meantime.)

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