C Programming Absolute Beginner's Guide (3rd Edition)

The next letter is L. The next letter is M. The next letter is N. The next letter is O. The next letter is P. The next letter is ...

30. Organizing Your Programs with Functions In This Chapter Adding functions to programs Choosing between global and local vari ...

program might not require many lines of code, but it’s much better to get in the habit of breaking every program into distinct t ...

Note Even though this program outline is longer than the previous one, this one is better organized and, therefore, easier to ma ...

return; } /* Fourth function to add employee to the payroll */ payrollAdd() { // Code to set the new employee's salary, // benef ...

opening braces. Some statements, such as while, also have opening braces, and you can define local variables within those braces ...

The variable g2 is global because it’s defined before a function (prAgain()). Local variables are usable only within their own b ...

a function begins. Local variables are safer than global variables, so use local variables as much as possible. Break your prog ...

31. Passing Variables to Your Functions In This Chapter Passing arguments to functions Differentiating between passing by value ...

Methods of Passing Arguments You pass arguments from a function to another function in two ways: by value and by address. Both o ...

half (int i) // Recieves the value of i { i = i / 2; printf("Your value halved is %d.\n", i); return; // Returns to main } Here ...

Warning Passing by value protects a variable. If the receiving function changes a passed-by- value variable, the calling functio ...

change(char name[15]) // Recieves the value of i { // Change the string stored at the address pointed to by name strcpy(name, "X ...

Click here to view code image Please enter an integer... 28 Your value halved is 14. In main(), i is now 14. It looks strange, b ...

// Now call the changeSome function, passing the value of i // and the address of x (hence, the &) changeSome(i, &x, iAr ...

The next chapter finishes with the passing of values between functions by showing you how to return a value from one function to ...

32. Returning Data from Your Functions In This Chapter Returning values Using the return data type This chapter isn’t the end ...

FIGURE 32.1 You can pass more than one value but return only one. Although a single return value might seem limiting, it really ...

#include <stdio.h> float gradeAve(float test1, float test2, float test3); main() { float grade1, grade2, grade3; float ave ...

Click here to view code image sales = quantity * price; return (sales); is identical to this: Click here to view code image retu ...