c語言 函數的參數傳遞示例

C ++ nexttoward()函數 (C++ nexttoward() function)

nexttoward() function is a library function of cmath header, it is used to get the next representable value after the given first number in the direction of given second number, it accepts two numbers (x, y) and returns the next representable value after x in the direction of y.

nexttoward()函數是cmath標頭的庫函數，用于在給定第二個數字的方向上獲取給定第一個數字之后的下一個可表示值，它接受兩個數字( x，y )并返回之后的下一個可表示值x沿y方向。

Note: The nexttoward() function is similar to nextafter() function, but it returns next representable value with a potentially more precise y.

注意： nexttoward()函數與nextafter()函數相似，但是它返回的下一個可表示值的y可能更精確。

Syntax of nexttoward() function:

nexttoward()函數的語法：

nexttoward(x, y);

Parameter(s): x, y – are the numbers to be used to find the next representable value of x in the direction of y.

參數： x，y –是用于在y方向上找到x的下一個可表示值的數字。

Return value: float/double/long double – based on the input type, it returns the next representable value of x.

返回值： float / double / long double-根據輸入類型，它返回x的下一個可表示值。

Example:

例：

Input:float x = 0.0;long double y = 1.0L;Function call:nexttoward(x,y); Output:1.4013e-45

C ++代碼演示nexttoward()函數的示例 (C++ code to demonstrate the example of nexttoward() function)

// C++ code to demonstrate the example of // nexttoward() function#include <iostream> #include <cmath> using namespace std;// main() section int main() {float x;long double y;x = 0.0;y = 1.0L;cout<<"nexttoward("<<x<<","<<y<<"): "<<nexttoward(x,y);cout<<endl;x = 0.0;y = 1.1L;cout<<"nexttoward("<<x<<","<<y<<"): "<<nexttoward(x,y);cout<<endl; x = 0.0;y = -1.0L;cout<<"nexttoward("<<x<<","<<y<<"): "<<nexttoward(x,y);cout<<endl;x = 0.1;y = 0.1L;cout<<"nexttoward("<<x<<","<<y<<"): "<<nexttoward(x,y);cout<<endl;return 0; }

Output

輸出量

nexttoward(0,1): 1.4013e-45 nexttoward(0,1.1): 1.4013e-45 nexttoward(0,-1): -1.4013e-45 nexttoward(0.1,0.1): 0.1

Reference: C++ nexttoward() function

參考： C ++ nexttoward()函數

翻譯自: https://www.includehelp.com/cpp-tutorial/nexttoward-function-with-example.aspx

c語言 函數的參數傳遞示例

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