alt Hacker NewsNot really. This is like if the char* were an Option<String> but you had programs which stupidly didn't check if the Option had something and assumed it always did. As others have said, Rust would not prevent this.
Not really. This is like if the char* were an Option<String> but you had programs which stupidly didn't check if the Option had something and assumed it always did. As others have said, Rust would not prevent this.
`Option<String>` or `Result<String>` forces the check at the callsite. Unlike C, you cannot forget that the function can error. This absolutely helps prevent issues like this.
Now, the decision to return `"*"` instead of letting poorly written code crash on `NULL` is not good either.