C function prototypes 🤖

C function prototypes tutorial example explained

#C #function #prototype

void hello(char[], int); //function prototype

int main()
{
// function prototype

// WHAT IS IT?
// Function declaration, w/o a body, before main()
// Ensures that calls to a function are made with the correct arguments

// IMPORTANT NOTES
// Many C compilers do not check for parameter matching
// Missing arguments will result in unexpected behavior
// A function prototype causes the compiler to flag an error if arguments are missing

// ADVANTAGES
// 1. Easier to navigate a program w/ main() at the top
// 2. Helps with debugging
// 3. Commonly used in header files

char name[] = "Bro";
int age = 21;

hello(name, age);

return 0;
}

void hello(char name[], int age)
{
printf("\nHello %s", name);
printf("\nYou are %d years old", age);
}