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

MB_LEN_MAX constant is a macro constant which is defied in climits header, it is used to get the maximum number of bytes in a multibyte character, for any locale, it returns maximum number of bytes that a multibyte character, which is 1 or more than it.

MB_LEN_MAX常數是在climits標頭中定義的宏常數，用于獲取多字節字符中的最大字節數，對于任何語言環境，它都返回一個多字節字符的最大字節數，即大于或等于1 。

Note:

注意：

• The actual value depends on the compiler architecture or library implementation.

  實際值取決于編譯器體系結構或庫實現。

• We can also use <limits.h> header file instead of <climits> header as MB_LEN_MAX constant is defined in both of the libraries.

  我們也可以使用<limits.h>頭文件代替<climits>頭文件，因為在兩個庫中都定義了MB_LEN_MAX常量 。

Syntax of MB_LEN_MAX constant:

MB_LEN_MAX常數的語法：

    MB_LEN_MAX

Example:

例：

    Constant call:
cout << MB_LEN_MAX;
Output:
16

C ++代碼演示帶有climits標頭的MB_LEN_MAX常量示例 (C++ code to demonstrate example of MB_LEN_MAX constant with climits header)

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

Output

輸出量

MB_LEN_MAX: 16

C ++代碼演示帶有limits.h頭文件的MB_LEN_MAX常量的示例 (C++ code to demonstrate example of MB_LEN_MAX constant with limits.h header file)

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

Output

輸出量

MB_LEN_MAX: 16

翻譯自: https://www.includehelp.com/cpp-tutorial/MB_LEN_MAX-constant-with-example.aspx