Fundamental data types

最新推荐文章于 2024-04-19 15:04:19 发布

最新推荐文章于 2024-04-19 15:04:19 发布 · 108 阅读

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本文介绍了计算机编程中常用的数据类型，包括字符、整数、浮点数等的基本属性和范围。详细解释了每种数据类型的存储大小及取值范围，并对比了不同精度浮点数的特点。

Name	Description	Size*	Range*
char	Character or small integer.	1byte	signed: -128 to 127 unsigned: 0 to 255
short int (short)	Short Integer.	2bytes	signed: -32768 to 32767 unsigned: 0 to 65535
int	Integer.	4bytes	signed: -2147483648 to 2147483647 unsigned: 0 to 4294967295
long int (long)	Long integer.	4bytes	signed: -2147483648 to 2147483647 unsigned: 0 to 4294967295
bool	Boolean value. It can take one of two values: true or false.	1byte	true or false
float	Floating point number.	4bytes	3.4e +/- 38 (7 digits)
double	Double precision floating point number.	8bytes	1.7e +/- 308 (15 digits)
long double	Long double precision floating point number.	8bytes	1.7e +/- 308 (15 digits)
wchar_t	Wide character.	2bytes	1 wide character

The values of the columns Size and Range depend on the architecture of the system where the program is compiled and executed.