c++ INFINIT

在C++中，`INFINIT`不是标准的关键字或内置常量。如果你想表示正无穷大，可以使用`std::numeric_limits<double>::infinity()`函数来获取`double`类型的正无穷大值。以下是一个示例代码片段：

#include <iostream>
#include <limits>

int main() {
    double inf = std::numeric_limits<double>::infinity();

    std::cout << "正无穷大: " << inf << std::endl;

    return 0;
}

在上述代码中，`std::numeric_limits<double>::infinity()`函数用于获取`double`类型的正无穷大值。然后，我们将该值存储在变量`inf`中，并输出它。

请注意，`INFINIT`在C++中不是标准的表示无穷大的方式。使用`std::numeric_limits<double>::infinity()`可以确保代码的可移植性和兼容性。

相关问题

Write a few lines of C++ code to show an example of an infinite loop. Explain why it is an infinite loop

Here's an example of an infinite loop in C++:

while(true){
    // code that never exits the loop
}

In this example, the `while` loop condition is always `true`, which means the loop will never exit. The loop will continue to execute the block of code inside the curly braces indefinitely.

This is an infinite loop because the loop condition is always true and there is no way for the loop to terminate on its own. The only way to exit the loop is to use a `break` statement or an external event (such as terminating the program).

Enter your answers into the text box below. a) Given the following: float data[54]; Write a line of C++ code that causes an “out of bounds” problem. [1 marks] b) Write the function prototype for a function with two string parameters that returns a boolean. [2 marks] c) Write a few lines of C++ code to show an example of an infinite loop. Explain why it is an infinite loop [2 marks] d) Given the following: string s; s = "Good evening"; What is the integer value stored in s[3] ? [2 marks]

a) `data[54] = 0;` will cause an out of bounds problem as the array `data` has a size of 54, meaning the last index is 53. Accessing index 54 will result in undefined behavior.

b) `bool functionName(string param1, string param2);`

c) Example code for an infinite loop:

while (true) {
    // code here
}

This is an infinite loop because the condition `true` will always be true, causing the loop to continue indefinitely.

d) The integer value stored in `s[3]` is the ASCII value for the character 'd', which is 100.