Instance MethodSystemPackage

    write(_:retryOnInterrupt:)

    Writes the contents of a buffer at the current file offset.

    func write(_ buffer: UnsafeRawBufferPointer, retryOnInterrupt: Bool = true) throws -> Int

    Parameters

    buffer

    The region of memory that contains the data being written.

    retryOnInterrupt

    Whether to retry the write operation if it throws Errno.interrupted. The default is true. Pass false to try only once and throw an error upon interruption.

    Returns

    The number of bytes that were written.

    Overview

    After writing, this method increments the file’s offset by the number of bytes written. To change the file’s offset, call the seek(offset:from:) method.

    The corresponding C function is write.