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By Andrey_Karpov_2009
via randomascii.wordpress.com
Submitted: Mar 11 2014 / 07:32

I’m planning a post on how to maximize build parallelism in VC++, but first I needed to create a simple project that was slow to compile. Creating such a program was an interesting exercise in its own right and I decided that it deserved a separate blog post. I started with a recursive algorithm that ran in exponential time. When I made it a compile-time algorithm I found that it compiled in linear time – too fast to be useful for my peculiar purposes. In order to get a slow-to-compile file I had to understand and then prevent the optimization that was allowing my result to be calculated so efficiently at compile time.
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