readIntoSync method Null safety

int readIntoSync (
  1. List<int> buffer,
  2. [int start = 0,
  3. int? end]
)

Synchronously reads into an existing List<int> from the file and returns the number of bytes read.

If start is present, the bytes will be filled into buffer from at index start, otherwise index 0. If end is present, the end - start bytes will be read into buffer, otherwise up to buffer.length. If end == start nothing happens.

Throws a FileSystemException if the operation fails.

Implementation

int readIntoSync(List<int> buffer, [int start = 0, int? end]);