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Code Complete, Second Edition

Cover of Code Complete, Second Edition by Steve McConnell Published by Microsoft Press
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Data Transformations

Changes in data types can be a powerful aid in reducing program size and improving execution speed. Data-structure design is outside the scope of this book, but modest changes in the implementation of a specific data type can also improve performance. Here are a few ways to tune your data types.

Use Integers Rather Than Floating-Point Numbers

Integer addition and multiplication tend to be faster than floating point. Changing a loop index from a floating point to an integer, for example, can save time:


For details on using integers and floating point, see Chapter 12.

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