[libcxx-commits] [PATCH] D60371: Add lerp function to cmath (P0811R3)

[Zoe Carver via Phabricator via libcxx-commits]

zoecarver added a comment.

@cpplearner that link is very helpful. In the first answer, there is a suggested function which might work well (though I haven't had time to test it yet). It is similar to the suggested implementation. There is one case which this function does not work for, but we could add a case for that. In pseudocode:

  if (t < 0.5) a + (b - a) * t  
  else b - (b - a) * (1 - t)

Additionally, the link has a lot of good exceptions which we could add to our tests. How does this compare to what you have @mclow.lists? I am going to add some tests to this patch in the meantime, mind sharing what you have so far?


Repository:
  rCXX libc++

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  https://reviews.llvm.org/D60371/new/

https://reviews.llvm.org/D60371