Avoid compiler bug

ba361d73 · Davis E. King · GitHub · 27a52936 · ba361d73
Unverified Commit ba361d73 authored Nov 09, 2018 by Davis E. King Committed by GitHub Nov 09, 2018
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tools/python/src/object_detection.cpp tools/python/src/object_detection.cpp +1 -1

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--- a/tools/python/src/object_detection.cpp
+++ b/tools/python/src/object_detection.cpp
@@ -129,7 +129,7 @@ std::shared_ptr<simple_object_detector_py> merge_simple_object_detectors (
 {
    DLIB_CASSERT(len(detectors) > 0);
    std::vector<simple_object_detector> temp;
-    for (auto& d : detectors)
+    for (const auto& d : detectors)
        temp.push_back(d.cast<simple_object_detector_py>().detector);

    simple_object_detector_py result;