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Code Complete, 2nd Edition
book

Code Complete, 2nd Edition

by Steve McConnell
June 2004
Intermediate to advanced
992 pages
37h 55m
English
Cisco Press
Content preview from Code Complete, 2nd Edition

Assertions

An assertion is code that's used during development—usually a routine or macro—that allows a program to check itself as it runs. When an assertion is true, that means everything is operating as expected. When it's false, that means it has detected an unexpected error in the code. For example, if the system assumes that a customerinformation file will never have more than 50,000 records, the program might contain an assertion that the number of records is less than or equal to 50,000. As long as the number of records is less than or equal to 50,000, the assertion will be silent. If it encounters more than 50,000 records, however, it will loudly "assert" that an error is in the program.

Assertions are especially useful in large, complicated ...

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Publisher Resources

ISBN: 0735619670Publisher Website