Remove the FILE ptr versions of the print_statistics functions to avoid issues on Windows.

Author: tkoolen

src/managed_scip.jl

@@ -287,16 +287,8 @@ for (scip_statistics_func, statistics_func) in zip(SCIP_STATISTICS_FUNCS, STATIS
     @eval begin
         """
             $($statistics_func)(mscip::ManagedSCIP)
-            $($statistics_func)(mscip::ManagedSCIP, file_descriptor::RawFD)
-            $($statistics_func)(mscip::ManagedSCIP, stream::Union{Base.Filesystem.File, IOStream})
-            $($statistics_func)(mscip::ManagedSCIP, filename::AbstractString)
 
-        Print statistics (calls `$($scip_statistics_func)`).
-
-        The one-argument version prints to standard output.
-
-        Note that the method that takes a stream only applies to synchronous
-        `File`s and `IOStream`s. In particular, it doesn't apply to `stdout`.
+        Print statistics (calls `$($scip_statistics_func)`) to standard output.
         """
         function $statistics_func end
 
@@ -305,27 +297,5 @@ for (scip_statistics_func, statistics_func) in zip(SCIP_STATISTICS_FUNCS, STATIS
             ret !== nothing && @assert ret == SCIP_OKAY
             return nothing
         end
-
-        function $statistics_func(mscip::ManagedSCIP, file_descriptor::RawFD)
-            file = Libc.FILE(file_descriptor, "w")
-            try
-                ret = $scip_statistics_func(mscip, file)
-                ret !== nothing && @assert ret == SCIP_OKAY
-            finally
-                close(file)
-            end
-            return nothing
-        end
-
-        function $statistics_func(mscip::ManagedSCIP, stream::Union{Base.Filesystem.File, IOStream})
-            return $statistics_func(mscip, fd(stream))
-        end
-
-        function $statistics_func(mscip::ManagedSCIP, filename::AbstractString)
-            open(filename, write=true) do io
-                $statistics_func(mscip, RawFD(fd(io)))
-            end
-            return nothing
-        end
     end
 end

test/managed_scip.jl

@@ -107,8 +107,17 @@ end
         mktempdir() do dir
             filename = joinpath(dir, "statistics.txt")
             @test !isfile(filename)
-            statistics_func(mscip, filename)
+            open(filename, write=true) do io
+                redirect_stdout(io) do
+                    statistics_func(mscip)
+                end
+            end
             @test isfile(filename)
+            if statistics_func == SCIP.print_statistics
+                # Ensure that at least `print_statistics` produces output
+                # (Not all statistics functions do for this simple model.)
+                @test filesize(filename) > 0
+            end
         end
     end
 end