"how to check if file is opened c++" Code Answer's

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how to check if file is opened c++

Agreeable Aardvark on Mar 20, 2021

ifstream file;
file.open(argv[1]);
if (!file.is_open()) { 
  cerr << "File did not open";
  exit(1); 
}

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"how to check if file is opened c++" Code Answer's