extract fn read_sequence

src/aevol_create.cpp

@@ -176,6 +176,17 @@ void interpret_cmd_line_options(int argc, char* argv[]) {
   }
 }
 
+auto read_sequence(std::ifstream& chromosome_file, const std::string& chromosome_file_name) {
+  std::string chromosome;
+
+  std::getline(chromosome_file, chromosome);
+  if (not chromosome_file or chromosome.length() == 0) {
+    Utils::ExitWithUsrMsg(std::string("failed to read from chromosome file ") + chromosome_file_name);
+  }
+
+  return chromosome;
+}
+
 std::list<std::string> read_sequence_file(const std::string& chromosome_file_name) {
   assert(chromosome_file_name.length() != 0);
 
@@ -186,12 +197,7 @@ std::list<std::string> read_sequence_file(const std::string& chromosome_file_nam
     Utils::ExitWithUsrMsg(std::string("failed to open source chromosome file ") + chromosome_file_name);
   }
 
-  std::string chromosome;
-  std::getline(chromosome_file, chromosome);
-  if (not chromosome_file or chromosome.length() == 0) {
-    Utils::ExitWithUsrMsg(std::string("failed to read from chromosome file ") + chromosome_file_name);
-  }
-  chromosomes.push_back(std::move(chromosome));
+  chromosomes.push_back(read_sequence(chromosome_file, chromosome_file_name));
 
   return chromosomes;
 }