c++ cstdlib

C ++ abs()函数 (C++ abs() function)

abs() function is a library function of cstdlib header. It is used to get the absolute value. It accepts a value (int, long int, long long it) and returns its absolute value. This method is an overloaded method of (that is used for getting absolute value of the floating-point values).

abs()函数是cstdlib标头的库函数。 用于获取绝对值。 它接受一个值(int，long int，long long it)并返回其绝对值。 此方法是的的重载方法用于获取浮点值的绝对值)。

Syntax of abs() function:

abs()函数的语法：

C++11:

C ++ 11：

int abs (int n);    long int abs (long int n);    long long int abs (long long int n);

Parameter(s):

参数：

• n – represents an Integral value whose absolute value to found.

  n –表示要找到其绝对值的整数值。

Return value:

返回值：

It returns the absolute value of n.

它返回n的绝对值。

Example:

例：

Input:    n = -10        Function call:    abs(n);        Output:    10    Input:    n = 10        Function call:    abs(n);        Output:    10

C ++代码演示abs()函数的示例 (C++ code to demonstrate the example of abs() function)

// C++ code to demonstrate the example of// abs() function#include 
    
     #include 
     
      using namespace std;// main() sectionint main(){    int n;    n = -10;    cout << "abs(" << n << "): " << abs(n) << endl;    n = 10;    cout << "abs(" << n << "): " << abs(n) << endl;    n = -12345678;    cout << "abs(" << n << "): " << abs(n) << endl;    n = 12345678;    cout << "abs(" << n << "): " << abs(n) << endl;    return 0;}
     
    

Output

输出量

abs(-10): 10abs(10): 10 abs(-12345678): 12345678abs(12345678): 12345678

Reference:

参考：

翻译自:

c++ cstdlib