Improve checking code.

src/CheckOutput.cpp

@@ -13,37 +13,40 @@ int main(int argc, char * argv[]) {
 
   FILE *  res_fd;
   char holder[20];
-  const char * program = argv[1];
+  std::string program = "./"; program.append( argv[1] );
+
   int numRuns = atoi( argv[2] );
   int expectedResult = atoi( argv[3] );
 
   int numCorrect = 0;
 
   for(int i = 0; i < numRuns; i++) {
-    res_fd = popen(argv[1], "r");
+    res_fd = popen( program.c_str(), "r" );
 
     if( !res_fd ) {
-      std::cerr << "Something wrong happened" << std::endl;
-      return 1; // something wrong happened
+      std::cerr << "Something wrong happened while executing your program" << std::endl;
+      return 1;
 
     }
 
-    int bytes = fread(holder, 1, sizeof(holder), res_fd);
-    int result = atoi(holder);
+    int bytes = fread( holder, 1, sizeof( holder ), res_fd );
+    int result = atoi( holder );
 
-    if( result = expectedResult )
+    if( result == expectedResult )
       numCorrect++;
-     pclose(res_fd);
+     pclose( res_fd );
 
     std::cout << "run " << i+1 << "/" << numRuns <<  "\r";
 
     //std::cout <<"bytes: " << bytes  << " result "<< result << std::endl;
   }
   std::cout << "\r";
 
-  std::cout << "program: " << program << std::endl
-            << "# of runs: " << numRuns << std::endl
-            << "correct runs: " << numCorrect << "(" << (numCorrect*100/numRuns) << "%)" << std::endl;
+  std::cout << "program: "      << program    << std::endl
+            << "# of runs: "    << numRuns    << std::endl
+            << "correct runs: " << numCorrect << "("
+            << ( numCorrect * 100 / numRuns ) << "%)" << std::endl;
+
+  return 0;
+}
 
-    std::cout << argv[1] << " " << numRuns << " " << expectedResult  << std::endl;
-}