Absolute keyword in Delphi
In Delphi, you can use the keyword absolute to force the union variable. e.g. Two variables share the same memory location, which is good to do some tricky things, for example, …
Tag: performance
Fast Integer Log10
April 16, 2013
algorithms, beginner, c #, code, code library, floating point, implementation, math, optimization, programming languages, tricks
9 Comments
Mathematical function log10can be quite time consuming. If it is not available, for some languages such as VBScript, you have to compute it base on the fact. and therefore, we …
The Inline Keyword in Delphi
The inline keyword in Delphi is a powerful optimization feature that instructs the compiler to replace a function or procedure call with its actual code, eliminating the overhead of …
Data Types in Delphi XE3, Win32 and Win64
March 17, 2013
beginner, compiler, delphi, implementation, object pascal, programming languages, windows
No Comments
The Delphi has been out of the mainstream programming languages for a while. It is not because it is not good. There are many reasons that it is not …
Stackoverflow: Why doesn’t the optimizer eliminate High in a loop?
March 16, 2013
assembly language, delphi, implementation, interpreter / compiler, programming languages, windows
No Comments
I have asked a question in stackoverflow.com and it brings some discussions. The question is about the code efficiency generated by Delphi compilers and I’ve tried the following simple example …