I finally found – not a widget, but the special WordPress sourcecode shortcode
[sourcecode language=”cpp”]
your code here
May
6
2010
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Alf on programming (mostly C++) 
Hm, WordPress doesn’t know that “operator” is a keyword in C++. Oh well. I guess one should just go with the flow, the alternative being to purchase some web hosting services or find a free host (and the free ones never last very long).
It looks nicely formatted on Google Reader but the syntax highlighting is missing.
I discovered that WordPress [sourcode] does the code formatting client-side via JavaScript, instead of in PHP at the server.
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Thanks for the example and source code, exactly what I was looking for, very informative!!
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