fOpen

inline fun <T> File.fOpen(flags: String, block: (file: CPointer<FILE>) -> T): T(source)

Opens the File, closing it automatically once block completes.

NOTE: Calling fclose on FILE within block will result in an IOException being thrown on block closure. Do not call fclose; it is handled on completion.

NOTE: Flag e for O_CLOEXEC is always added to flags for non-Windows if it is not present.

e.g.

myFile.withOpen("rb") { file ->
    // read it
}

Parameters

flags

fopen arguments (e.g. "rb", "ab", "wb")

Throws

IOException

on fopen/fclose failure. Note that any exceptions thrown by block will not be converted to an IOException.