If fopen( path, “w” ) succeeds, then the file will be truncated. If the fopen fails, are there an guarantees that the file is not modified?
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If fopen( path, “w” ) succeeds, then the file will be truncated. If the fopen fails, are there an guarantees that the file is not modified?
No there are no guarantees about the state of a file if
fopen(path, "w")fails. The failure could be coming from any operation from opening the file, committing the truncation to disk, etc … The only guarantee a failure provides is that you don’t have access to the file.