#include <...> /* Assume all necessary headers are included */ pid_t pid; int value = 500; int main() { } pid = fork(); if (pid < 0) { printf("Failed to fork a new process.\n"); exit(1); 0) { } else if (pid value *- *= 3; printf("Child has value %d\n", value); } else { value += 20; printf("Parent has value %d\n", value); } value /- 2; printf("Now the value is %d\n", value); exit();
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Introduction
C Programming:
C was developed in the 1970s as a high-level programming language. It is prevalently used for creating a broad range of applications, such as os's, integrated devices, software applications, and game development. C is well-known for its lower overhead and efficiency, which makes it perfect for system programming.
Function:
A function in C is a self-contained block of code that performs a specific task. Functions are a key feature of structured programming, allowing you to divide a large and complex program into smaller and more manageable parts. Functions make the code easier to read and maintain, and can also improve the efficiency and reusability of your code.
In C, functions have the following syntax:
return_type function_name(parameter_list) {
// function body
}
where return_type is the type of value that the function returns, function_name is the name of the function, and parameter_list is a list of parameters that the function takes as input. The function body contains the statements that define the actions that the function performs. Functions can be called from other parts of the program and can return a value to the caller if desired.
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