一些平台无关的整型类型,int8_t,uint8_t....

转载于 2015-06-10 10:54:00 发布 · 70 阅读

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原文链接：http://www.cnblogs.com/thrillerz/p/4565432.html

本文详细解析了不同平台下数据类型的定义、表示形式及其应用范围，包括整数类型（int8_t, uint8_t, int16_t, uint16_t, int32_t, uint32_t, int64_t, uint64_t）的限制和特点，重点阐述了它们在32位和64位机器上的表现差异，并强调了使用stdint.h头文件的重要性以确保代码的跨平台兼容性。

pecific integral type limits
Specifier	Common Equivalent	Signing	Bits	Bytes	Minimum Value	Maximum Value
`int8_t`	`signed char`	Signed	8	1	−128	127
`uint8_t`	`unsigned char`	Unsigned	8	1	0	255
`int16_t`	`short`	Signed	16	2	−32,768	32,767
`uint16_t`	`unsigned short`	Unsigned	16	2	0	65,535
`int32_t`	`int`	Signed	32	4	−2,147,483,648	2,147,483,647
`uint32_t`	`unsigned int`	Unsigned	32	4	0	4,294,967,295
`int64_t`	`long long`	Signed	64	8	−9,223,372,036,854,775,808	9,223,372,036,854,775,807
`uint64_t`	`unsigned long long`	Unsigned	64	8	0	18,446,744,073,709,551,615