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Joe Marshall: Can continuation passing style code perform well?

Continuation passing style is a powerful technique that allows you to abstract over control flow in your program. Here is a simple example: We want to look things up in a table, but sometimes the key we use is not associated with any value. In that case, we have to do something different, but the lookup code doesn't know what the caller wants to do, and the caller doesn't know how the lookup code works. Typically, we would arrange for...