uint32_t 是常数吗_UINT_MAX常数，带C ++示例

uint32_t 是常数吗

C ++ UINT_MAX宏常量 (C++ UINT_MAX macro constant)

UINT_MAX constant is a macro constant which is defied in climits header, it is used to get the minimum value of an unsigned int object, it returns the minimum value that an unsigned int object can store, which is 4294967295 (on 32 bits compiler).

UINT_MAX常数是在climits标头中定义的宏常数，用于获取无符号int对象的最小值，它返回无符号int对象可以存储的最小值，即4294967295 (在32位编译器上)。

Note:

注意：

The actual value depends on the compiler architecture or library implementation.
实际值取决于编译器体系结构或库实现。
We can also use <limits.h> header file instead of <climits> header as UINT_MAX constant is defined in both of the libraries.
我们也可以使用<limits.h>头文件而不是<climits>头文件，因为在两个库中都定义了UINT_MAX常量 。

Syntax of UINT_MAX constant:

UINT_MAX常数的语法：

    UINT_MAX

Example:

例：

    Constant call:
cout << UINT_MAX;
Output:
4294967295

C ++代码演示带有climits标头的UINT_MAX常量示例 (C++ code to demonstrate example of UINT_MAX constant with climits header)

// C++ code to demonstrate example of 
// UINT_MAX constant with climits header
#include<iostream>
#include<climits>
using namespace std;
int main()
{
//prinitng the value of UINT_MAX
cout<<"UINT_MAX: "<<UINT_MAX<<endl;
return 0;
}

Output

输出量

UINT_MAX: 4294967295

C ++代码演示带有limits.h头文件的UINT_MAX常量示例 (C++ code to demonstrate example of UINT_MAX constant with limits.h header file)

// C++ code to demonstrate example of 
// UINT_MAX constant with <limits.h> header file
#include<iostream>
#include<limits.h>
using namespace std;
int main()
{
//prinitng the value of UINT_MAX
cout<<"UINT_MAX: "<<UINT_MAX<<endl;
return 0;
}

Output

输出量