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March 2009 - Posts

Friday, March 27, 2009 1:22 AM

Unsigned considered harmful

(or is "xxx considered harmful" completely worn out as a meme?) I believe that, in general, people should avoid unsigned variables, even when dealing with quantities which should only be positive. I have three major problems with unsigned variables: Subtraction
Posted by laurionb | 5 Comments
Tuesday, March 17, 2009 9:47 PM

JET_COLUMNID scope

A JET_COLUMNID identifies a column inside of a table (it is actually an index into an internal per-table array of column definition structures). The database meta-data provides a mapping from column name to columnid. The mapping of column names to columnids
Posted by laurionb | 0 Comments
Sunday, March 01, 2009 9:52 PM

What does a failing Assert() mean?

When an assert goes off what does it mean? In the codebases I work in, a failing assert doesn't always indicate that the code is about to fail. There actually are several conditions that we want to check with asserts. The first three are from Meyer's
Posted by laurionb | 1 Comments
 
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