是一个int 64位整数的64位C＃？ [英] Is an int a 64-bit integer in 64-bit C#?

问题描述

在我的C＃源$ C ​​$ C我可能已经宣布的整数为：

  INT I = 5;
 

或

 的Int32 i = 5;
 

在当前prevalent 32位的世界里，他们是等价的。然而，当我们进入一个64位的世界里，我是正确的说，下面会成为一样的吗？

  INT I = 5;
我的Int64 = 5;
 

解决方案

没有。 C＃的规范严格定义了 INT 是 System.Int32的的别名恰好有32位。改变这将是一个的主要的重大更改。

In my C# source code I may have declared integers as:

int i = 5;

or

Int32 i = 5;

In the currently prevalent 32-bit world they are equivalent. However, as we move into a 64-bit world, am I correct in saying that the following will become the same?

int i = 5;
Int64 i = 5;

解决方案

No. The C# specification rigidly defines that int is an alias for System.Int32 with exactly 32 bits. Changing this would be a major breaking change.

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