Throwing exception when rm file not found

reading_machine/src/ReadingMachine.cpp

@@ -21,6 +21,8 @@ ReadingMachine::ReadingMachine(std::filesystem::path path, std::vector<std::file
 void ReadingMachine::readFromFile(std::filesystem::path path)
 {
   std::FILE * file = std::fopen(path.c_str(), "r");
+  if (not file)
+    util::myThrow(fmt::format("can't open file '{}'", path.string()));
 
   char buffer[1024];
   std::string fileContent;