stan-dev / stan-dev/math

Move Eigen.hpp out of prim

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#3,128 2 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Description

Right now most files include stan/math/prim/fun/Eigen.hpp before everything else.

#include <stan/math/prim/fun/Eigen.hpp>
#include <stan/math/rev/meta.hpp>
#include <stan/math/rev/core.hpp>
#include <stan/math/rev/fun/value_of.hpp>

But our rules for fwd and rev are the you should always include fwd/rev files before including anything from prim. So we should move Eigen.hpp up to the math folder so it is out of prim.

Current Version:

v4.9.0

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with stan/math/prim/fun/Eigen.hpp and search the repository for includes of that path and references to the header location. Move the header to the math folder, update affected includes while preserving the fwd/rev ordering rule, and verify that the project builds and its tests pass.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
tooling
Issue type
Refactor
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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