在32位的编译器上,unsigned int最大值:4294967295。c语言标准库中的limits.h头文件定义了unsinged int的最大值宏——UINT_MAX,可以直接使用printf函数将其打印出来。include<stdio.h> include <limits.h> int main(){ printf("unsigned int最大值:%u\n", UINT_MAX );return 0;} ...
MAX_VALUE + 1 = MIN_VALUE MIN_VALUE - 1 = MAX_VALUE C语言中变量默认 为有符号的类型,如要将变量声明为无符号数,则需要使用unsigned关键字(C语言中只有整数类型能够声明为unsigned无符号变量)。 #include int main() { int i; //默认i为有符号数 signed int j; //显示声明j为有符号数 unsigned ch...
unsigned int max_int = 0-1; printf("The max value of unsigned int on 32 machine: %u/n", max_int); gcc编译后: int_sizeof1.c: 在函数‘main'中: int_sizeof1.c:5: 警告:整数溢出 运行后: The max value of int on 32 machine: 4294967295 VC6.0和java编译后,无错误。 运行后: The ma...
unsigned int max_int = 0-1;printf("The max value of unsigned int on 32 machine: %u/n", max_int);} int_sizeof1.c: 在函数‘main'中:int_sizeof1.c:5: 警告:整数溢出 The max value of int on 32 machine: 4294967295 The max value of int on 32 machine: 4294967295 复制代码代码如下:...
An unsigned integer is a whole number variable type in computer science that ranges from 0 to a specific maximum value determined by the number of bits used for its representation. AI generated definition based on: Programming 8-bit PIC Microcontrollers in C, 2008 ...
输出的是int型可以表示的最大值 所以这里取决于你使用的编译器对int型数据做几个字节处理 例如编译器做4直接处理,结果是2147483647;2字节处理的话就是32767
The number line ranges from 0 to the max value (assume 255 for one byte long int). When an unsigned int hits -1, it wraps around to the max value which is 255 for one byte long int. So on the number line it jumps from 0 to the end of the number line which is 255. Then ...
int == signed int,但是char不能简单以为 == signed char 要确定char究竟等同什么要基于不同的编译器做测试 大多数机器使用补码来存储整数,在这些机器中按照整数类型存储的-1的所有位均是1 假设我的机器也是如此存储,就能据此判断char究竟是等于signed char还是unsigned char ...
unsigned意为“没有标记过的”,在C语⾔中表⽰⽆符号的,与关键字signed对应 这个关键字在很多头⽂件的变量定义中还是很常见的,⼀般⽤在整数类型的符号说明处 unsigned的作⽤是:声明⽆符号的整数类型。unsigned的使⽤和signed类似,unsigned⼀般加在int等整数类型名称前:/* unsigned可以修饰的⼏...
输出unsigned char、unsigned short、unsigned int、unsigned long使用的占位符分别为%d/%u、%d/%u、%u和%lu。