char 类型的常数_CHAR_MAX常数,带C ++示例
char 類型的常數
C ++ CHAR_MAX宏常量 (C++ CHAR_MAX macro constant)
CHAR_MAX constant is a macro constant which is defied in climits header, it is used to get the maximum value of a char object, it returns the maximum value that a char object can store, which is either 127 (SCHAR_MAX) or 255 (UCHAR_MAX).
CHAR_MAX常量是在climits標頭中定義的宏常量,用于獲取char對象的最大值,它返回char對象可以存儲的最大值,即127( SCHAR_MAX )或255( UCHAR_MAX ) 。
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 CHAR_MAX constant is defined in both of the libraries.
我們也可以使用<limits.h>頭文件而不是<climits>頭文件,因為在兩個庫中都定義了CHAR_MAX常量 。
Syntax of CHAR_MAX constant:
CHAR_MAX常數的語法:
CHAR_MAXExample:
例:
Constant call:cout << CHAR_MAX;Output:127C ++代碼演示帶有climits標頭的CHAR_MAX常量示例 (C++ code to demonstrate example of CHAR_MAX constant with climits header)
// C++ code to demonstrate example of // CHAR_MAX constant with climits header #include<iostream> #include<climits> using namespace std;int main() {//prinitng the value of CHAR_MAXcout<<"CHAR_MAX: "<<CHAR_MAX<<endl;return 0; }Output
輸出量
CHAR_MAX: 127C ++代碼演示帶有limits.h頭文件的CHAR_MAX常量示例 (C++ code to demonstrate example of CHAR_MAX constant with limits.h header file)
// C++ code to demonstrate example of // CHAR_MAX constant with <limits.h> header file #include<iostream> #include<limits.h> using namespace std;int main() {//prinitng the value of CHAR_MAXcout<<"CHAR_MAX: "<<CHAR_MAX<<endl;return 0; }Output
輸出量
CHAR_MAX: 127翻譯自: https://www.includehelp.com/cpp-tutorial/CHAR_MAX-constant-with-example.aspx
char 類型的常數
總結
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