November 2019
Beginner to intermediate
674 pages
15h
English
Content preview from Mastering Delphi Programming: A Complete Reference Guide
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Optimization
The Optimization option controls code optimization. The possible values are On and Off. This setting can also be controlled with compiler directives {$OPTIMIZATION ON} and {$OPTIMIZATION OFF} or with equivalent {$O+} and {$O-}.
When optimization is enabled, the compiler optimizes generated code for speed. Optimizations are guaranteed not to change the behavior of the program. The only reason you may want to turn optimization off is to improve debugging. When optimization is turned on, debugging—especially stepping through the code and evaluating variables—may not be working correctly in all cases.
My approach is to turn optimization off during development, and on when building the release version.
The $O (or $OPTIMIZATION) directive ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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