Chapter 11

Advanced Topics

Congratulations! By now you've mastered most of the fundamental C programming concepts. This chapter will fill you in on some useful C programming tips, tricks, and techniques that will enhance your programming skills. We'll start with a look at typecasting, C's mechanism for translating one data type to another.

Typecasting

Often, you will find yourself trying to convert a variable of one type to a variable of another type. For example, this code fragment:

float f; int   i; f = 3.5; i = f; printf( "i is equal to %d", i );

causes the following line to appear in the console window:

i is equal to 3

Notice that the original value assigned to f was truncated from 3.5 to 3 when the value in f was assigned to i. This truncation ...

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