August 2013
Beginner
352 pages
8h 50m
English
Content preview from C Programming Absolute Beginner’s Guide, Third Edition
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11. The Fork in the Road—Testing Data to Pick a Path
C provides an extremely useful statement called if. if lets your programs make decisions and execute certain statements based on the results of those decisions. By testing contents of variables, your programs can produce different output, given different input.
This chapter also describes relational operators. Combined with if, relational operators make C a powerful data-processing language. Computers would really be boring if they couldn’t test data; they would be little more than calculators if they had no capability to decide courses of action based on data.
Testing Data
The C if statement works just like it does in spoken language: ...
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