问题描述
如果我错了，请纠正我，
Correct me if I am wrong,
int 是 4 个字节，取值范围从 -2,147,483,648 到 2,147,483,647 (2^31)
long 是 4 个字节，取值范围从 -2,147,483,648 到 2,147,483,647 (2^31)
int is 4 bytes, with a range of values from -2,147,483,648 to 2,147,483,647 (2^31)
long is 4 bytes, with a range of values from -2,147,483,648 to 2,147,483,647 (2^31)
C++ 有什么不同?它们可以互换使用吗?
What is the difference in C++? Can they be used interchangeably?
推荐答案
它依赖于实现.
例如，在 Windows 下它们是相同的，但例如在 Alpha 系统上，long 是 64 位，而 int 是 32 位.这个文章 涵盖了英特尔 C++ 编译器在可变平台上的规则.总结一下:
For example, under Windows they are the same, but for example on Alpha systems a long was 64 bits whereas an int was 32 bits. This article covers the rules for the Intel C++ compiler on variable platforms. To summarize:
OS arch size
Windows IA-32 4 bytes
Windows Intel 64 4 bytes
Windows IA-64 4 bytes
Linux IA-32 4 bytes
Linux Intel 64 8 bytes
Linux IA-64 8 bytes
Mac OS X IA-32 4 bytes
Mac OS X Intel 64 8 bytes
这篇关于C++ 中的 int 和 long 有什么区别?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！