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

Warning The second string’s length doesn’t end at the 0 in 10 because the 0 in 10 isn’t a null zero; it’s a character zero. Tip ...

You always have to reserve enough character array space to hold the longest string you will need to hold, plus the string termin ...

Tip Printing strings in arrays is easy. You use the %s conversion character: Click here to view code image printf("The month is ...

Tip Don’t worry: strcpy() automatically adds a null zero to the end of the string it creates. Now let’s take everything we’ve co ...

right in the printf() statements? Again, the value of these variables will become more apparent after Chapter 8, “Interacting wi ...

7. Making Your Programs More Powerful with #include and #define In This Chapter Including files Placing #include directives Def ...

FIGURE 7.1 #include inserts a disk file into the middle of another file. Note When you’ve used a word processor, you might have ...

Almost every complete program listing in this book contains the following preprocessor directive: #include <stdio.h> That’ ...

Note The Draw Poker program in Appendix B, “The Draw Poker Program,” includes several header files because it uses lots of built ...

Tip Use uppercase letters for the defined constant name. This is the one exception in C when uppercase is not only used, but rec ...

// you can set them with #DEFINE statements (so you can change them // as needed) // If you plan on using them in several progra ...

return 0; } Again, there isn’t much to this code. All it does is state that a family has three children and then names each chil ...

8. Interacting with Users In This Chapter Looking at scanf() Prompting for scanf() Solving problems with scanf() printf() send ...

if you need to get an amount from the user, you would put a printf() function like this before scanf(): Click here to view code ...

and recompile and run the program. You will find the prompt confusing, and you wrote the program! Think of how the user will fee ...

character array, don’t put the ampersand before the array name. Warning You also wouldn’t put the ampersand in front of pointer ...

// The pizza topping is a string, so your scanf doesn't need an & printf("What is your favorite one-word pizza topping?\n"); ...

Being able to process user input is an important part of any language. scanf() performs data entry—that is, scanf() gets the use ...

Part II: Putting C to Work for You with Operators and Expressions ...

9. Crunching the Numbers—Letting C Handle Math for You In This Chapter Handling basic arithmetic Understanding order of operato ...