c++ - Getting Unchecked return value from library?

Question

Calling remove(file.txt) without checking return value. This library function may fail and return an error code

I am getting above warning in below code-

bool chkfile() {
  std::remove(file.txt);
  return true;
}

How should I remove this warning?

标签： c++static-analysis

Answer 1

You can refer to this link to see the issue. You have to check if there is no issue during remove operation.

Your code should be something like this,

bool chkfile() {
  if (std::remove("file.txt") != 0) {
    // error handling
  } else {
    // success
    return true;
  }
}