long + ulong

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

ULONG_MAX constant is a macro constant which is defied in climits header, it is used to get the maximum value of an unsigned long int object, it returns the maximum value that an unsigned long int object can store, which is 18446744073709551615 (on 32 bits compiler).

ULONG_MAX常量是在climits标头中定义的宏常量，用于获取无符号long int对象的最大值，它返回无符号long int对象可以存储的最大值，即18446744073709551615 (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 ULONG_MAX constant is defined in both of the libraries.

  我们也可以使用<limits.h>头文件代替<climits>头文件，因为在两个库中都定义了ULONG_MAX常量 。

Syntax of ULONG_MAX constant:

ULONG_MAX常数的语法：

    ULONG_MAX

Example:

例：

    Constant call:
cout << ULONG_MAX;
Output:
18446744073709551615

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

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

Output

输出量

ULONG_MAX: 18446744073709551615

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

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

Output

输出量

ULONG_MAX: 18446744073709551615

翻译自: https://www.includehelp.com/cpp-tutorial/ULONG_MAX-constant-with-example.aspx

long + ulong