From a246d8d8e93ef41b9bca9a0ce7b46045127b9419 Mon Sep 17 00:00:00 2001
From: michal-kowalczyk <mkk@ekk.pl>
Date: Fri, 12 Apr 2019 17:51:35 +0200
Subject: [PATCH] Merge pull request #13709 from
 michal-kowalczyk:flush-processed-samples-number

* Add flushing to printing number of processed positive/negative samples so that user is informed of updates quickly.

* use flush C api instead of C++ api
---
 apps/traincascade/cascadeclassifier.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/apps/traincascade/cascadeclassifier.cpp b/apps/traincascade/cascadeclassifier.cpp
index 341647cddc..3d7b383258 100644
--- a/apps/traincascade/cascadeclassifier.cpp
+++ b/apps/traincascade/cascadeclassifier.cpp
@@ -341,6 +341,7 @@ int CvCascadeClassifier::fillPassedSamples( int first, int count, bool isPositiv
             {
                 getcount++;
                 printf("%s current samples: %d\r", isPositive ? "POS":"NEG", getcount);
+                fflush(stdout);
                 break;
             }
         }