Sams Teach Yourself C in 21 Days

Passing Arguments to a Function ...................................................................... To pass arguments to a fu ...

Packaging Code in Functions 115 5 again, this time with third()’s return value as an argument. Finally,half()’s return value is ...

If the return value of the function meets the criteria (in this case, if half_of()returns a value greater than 10), the ifstatem ...

Packaging Code in Functions 117 5 However, you can also calculate x!like this: x! = x * (x-1)! Going one step further, you can c ...

Enter an integer value between 1 and 8: 6 6 factorial equals 720 The first half of this program is like many of the other progra ...

Packaging Code in Functions 119 5 You can keep your user-defined functions in a separate source-code file, apart from main(). Th ...

functions is essential for structured programming—a method of program design that emphasizes a modular, top-down approach. Struc ...

Packaging Code in Functions 121 5 Q What are member functions? AMember functions are special functions used in object-oriented l ...

void print_msg( void ); int main( void ) { print_msg( “This is a message to print” ); return 0; } void print_msg( void ) { puts( ...

DAY 6 WEEK 1 Basic Program Control Day 4, “Statements, Expressions, and Operators,” covered the ifstatement, which gives you som ...

Arrays: The Basics .............................................................................................. Before we cove ...

Basic Program Control 125 6 Controlling Program Execution ...................................................................... ...

If conditionevaluates to false (that is, it is equal to zero), the forstatement termi- nates and execution passes to the first ...

Basic Program Control 127 6 10: 11: for (count = 1; count <= 20; count++) 12: printf(“%d\n”, count); 13: 14: return 0; 15: } ...

Line 3 includes the standard input/output header file. Line 5 declares a type int variable, named count, that will be used in th ...

Basic Program Control 129 6 The test expression that terminates the loop can be any C expression. As long as it evalu- ates to t ...

TheforStatement for (initial; condition; increment) statement(s) initialis any valid C expression. It is usually an assignment s ...

Basic Program Control 131 6 NestingforStatements ............................................................................... ...

In this listing, a function prototype for draw_box()is declared on line 5. This function takes two type intvariables,rowandcolum ...

Basic Program Control 133 6 ThewhileStatement .................................................................................. ...