improve output

seqan · Dec 5, 2023 · 47caf7f · 47caf7f
1 parent 714016d
commit 47caf7f
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/src/layout/output.cpp b/src/layout/output.cpp
@@ -25,10 +25,13 @@ void write_user_bins_to(std::vector<std::vector<std::string>> const & filenames,
     size_t counter{};
     for (auto const & filenames_of_user_bin : filenames)
     {
-        stream << seqan::hibf::prefix::meta_header << counter++ << ' ';
+        // the below will write lines like this:
+        // @0 file1.fa file2.fa
+        // @1 fileABC.fa
+        char const separator = ' ';
+        stream << seqan::hibf::prefix::meta_header << counter++;
         for (std::string const & filename : filenames_of_user_bin)
-            stream << filename << ' ';
-        stream.seekp(static_cast<int>(stream.tellp()) - 1); // overwrite last ' '
+            stream << separator << filename;
         stream << '\n';
     }
     stream << chopper::prefix::meta_chopper_user_bins_end << '\n';