Struct gcj_helper::IoHelper

pub struct IoHelper { /* fields omitted */ }

Provides I/O support for problem solving code.

The IoHelper type allows reading from an input file and writing to an output file. IoHelper::read_line() reads the next line of text from the input file, and io::Write is implemented for IoHelper such that data is written to the output file.

Methods

impl IoHelper

fn read_line(&mut self) -> String

Reads a line of text from the input file.

Panics

This method panics if reading fails for any reason, such as having reached the end of the input file.

fn current_case(&self) -> usize

Returns the current test case number.

fn case_count(&self) -> usize

Returns the total number of test cases in the input file.

Trait Implementations

impl Debug for IoHelper

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Write for IoHelper

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this object, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_all(&mut self, buf: &[u8]) -> Result<()>

Attempts to write an entire buffer into this write.

fn write_fmt(&mut self, fmt: Arguments) -> Result<()>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.