C++ test for within
I found myself having to right a bunch of range checking code like this: [cc lang="cpp"] if (val 1.0) val = 1.0; [/cc] so I wrote this simple function. [cce lang="cpp"] include template const Type...
View ArticleSwitching keys in values in a map
A functor that reverses a pair: first becomes second, second becomes first. Useful for switching from a map to another map (or multimap in this example) where the value becomes the key and the key the...
View ArticleJeopardy playing computer
From NY Times is this article [Smarter Than You Think - I.B.M.'s Supercomputer Challenges 'Jeopardy!' Champions - NYTimes.com](http://www.nytimes.com/2010/06/20/magazine/20Computer-t.html?hp) about how...
View ArticlePurpose vs. Profit Motive
Daniel Pink has some surprising results about what motivates people. Mostly, if there’s any creativity, then more money doesn’t provide more motivation — and may even unmotivate....
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Google dominating search
There’s talk that [Bing](http://www.bing.com) has gotten to a 10% market share in search. [Apple...
View ArticleGetting the keys from a std::map
So last week I wrote about [initializing a std::map](http://www.peteware.com/blog/2009/05/copying-a-stdvector-into-a-stdmap/) from two [std::vectors](http://www.cplusplus.com/reference/stl/vector/)....
View ArticleFunctor for deleting objects
In a destructor for a class, I had a [std::vector](http://www.cplusplus.com/reference/stl/vector/) of pointers that I wanted to delete. I started to write the usual for(;;) loop and realized I do this...
View ArticleA better output_iterator
I was using the [std::stream_iterator](http://www.cplusplus.com/reference/std/iterator/ostream_iterator/), for example: [cc lang="cpp"] std::vector vals; vals.push_back (12); vals.push_back (22);...
View ArticleCloser to a new car?
It’s one step closer to happening! Getting a new car based on a trade in might actually happen. It hasn’t passed the House yet (much less the Senate) but the leadership of both parties agree on doing...
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