update headers

stan-dev · Dec 18, 2024 · 09d66e5 · 09d66e5
1 parent 4a058bc
commit 09d66e5
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Showing 2 changed files with 2 additions and 3 deletions.
diff --git a/src/stan/callbacks/multi_writer.hpp b/src/stan/callbacks/multi_writer.hpp
@@ -1,8 +1,9 @@
 #ifndef STAN_CALLBACKS_MULTI_WRITER_HPP
 #define STAN_CALLBACKS_MULTI_WRITER_HPP
 
-#include <stan/callbacks/writer.hpp>
 #include <stan/math/prim/fun/Eigen.hpp>
+#include <stan/callbacks/writer.hpp>
+#include <stan/math/prim/functor/for_each.hpp>
 #include <memory>
 #include <ostream>
 #include <string>

diff --git a/src/stan/callbacks/unique_stream_writer.hpp b/src/stan/callbacks/unique_stream_writer.hpp
@@ -113,8 +113,6 @@ class unique_stream_writer final : public writer {
       return;
     *output_ << comment_prefix_ << message << std::endl;
   }
-  using Stream = std::decay_t<Stream>;
-
  private:
   /**
    * Comma formatter for writing Eigen matrices