From b9475855cc2a333ecbe5a9762c5ff3939f09da64 Mon Sep 17 00:00:00 2001
From: Phuntsok Drak-pa <phundrak@phundrak.fr>
Date: Tue, 19 Mar 2019 11:15:42 +0100
Subject: [PATCH] attempt to fix CI

---
 .gitlab-ci.yml |  4 ++++
 src/main.cc    | 20 +++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8157f0d..713bab3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,9 @@
 image: conanio/clang7
 
+variables:
+  CC: /usr/bin/clang
+  CXX: /usr/bin/clang++
+
 build:
   stage: build
   before_script:
diff --git a/src/main.cc b/src/main.cc
index d067115..89c5517 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -1,6 +1,24 @@
 #include <iostream>
+#include <opencv2/core/core.hpp>
+#include <opencv2/highgui/highgui.hpp>
+
+using namespace std;
 
 int main(int argc, char **argv) {
-  std::cout << "Hello World!\n";
+  if (argc != 2) {
+    cout << " Usage: display_image ImageToLoadAndDisplay" << endl;
+    return -1;
+  }
+
+  cv::Mat image = cv::imread(argv[1], cv::IMREAD_COLOR); // Read the file
+
+  if (!image.data) // Check for invalid input
+  {
+    cout << "Could not open or find the image" << std::endl;
+    return -1;
+  } else {
+    cout << "Loaded image!\n";
+  }
+
   return 0;
 }