How to call void function in c++ later

Call void function in C: Define function: void function_name(parameter_list) {/Function code/}Call function: function_name(argument_list);

How to call the void function in C

The void function is a function that has no return value type. In C, you can call a void function by following the steps below:

1. Define the function

First, you need to define a void function. The syntax of void function is as follows:

<code class="cpp">void function_name(parameter_list) {
  // 函数代码
}</code>

where function_name is the function name, parameter_list is the function parameter list (optional).

2. Call the function

To call the void function, you can use the following syntax:

<code class="cpp">function_name(argument_list);</code>

Among them, argument_list is given Defines the list of actual parameters of the function, which should match the type and number of parameters in the function parameter list.

Example

The following is a sample code using the void function:

<code class="cpp">void print_hello() {
  std::cout << "Hello, world!" << std::endl;
}

int main() {
  print_hello();
  return 0;
}</code>

In this example, print_hello is a void function, which prints "Hello, world!". In the main function, the print_hello function is called, causing it to execute and print its message.

The above is the detailed content of How to call void function in c++ later. For more information, please follow other related articles on the PHP Chinese website!