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Tuesday, 2. February 2016

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In Delphi, is addition commutative?

Delphi Corner Weblog – Answer: no, not necessarily. Despite the existence of operator precedence, i.e. the fact that the following X := 3 + 4 * 5; results in 23 and not in 35, the order of operands can still have an effect. In my BigInteger code, I discovered an odd error, that only happened in some very rare cases, ...
Details Favorite? Off-Topic? Rudy Velthuis @ 00:01

Monday, 1. February 2016

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Integer division by constant

The Programming Works – If divisor is fixed, the division operation can be replaced by multiplication by a reciprocal; the idea is very simple: x / d = x * (1/d); since d is fixed we can precompute 1/d and use faster multiplication operation. This trick works for integer division, with some additional complications. For ...
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InterBase User Security – InterBase Labs

Stephen Ball – InterBase User Security User Security isn’t new; everyone is use to logging into the applications they use. To help developers build cross platform applications faster, InterBase has a flexible API for user security that simplifies the access to data held in InterBase regardless if your ...
Details Favorite? Off-Topic? Stephen Ball @ 17:04
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Blog UI Redesign in Progress

Marco's Tech Blog – As you might have seen if you visited my blog during the last two days, I'm in the process of a complete redesign of the blog user interface. I'm moving from a totally custom CSS style written when I first built this blog, in September 2005, to a Bootstrap-based web site. I started from a rather ...
Details Favorite? Off-Topic? marcocantu @ 11:02
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