comparison transform/CSVFeatureWriter.cpp @ 604:4541581067f3

* Better handling of failed-to-open-output-stream situations; ensure CSV
  writer closes files when they're finished rather than when it's finished

 {
     // Select appropriate output file for our track/transform
     // combination
 
     QTextStream *sptr = getOutputStream(trackId, transform.getIdentifier());
-    if (!sptr) return; //!!! this is probably better handled with an exception
+    if (!sptr) {
+        throw FailedToOpenOutputStream(trackId, transform.getIdentifier());
+    }
 
     QTextStream &stream = *sptr;
 
     for (unsigned int i = 0; i < features.size(); ++i) {