Flash cards
Review the key moves
1/3
Core idea
What is the main idea behind C++ iostream Library (Standard Input / Output Streams)?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Order
Put the learning moves in the order that makes the concept easiest to apply.
A list of all iostream objects can be found in the table below.
The <iostream> library provides objects which can read user input and output data to the console or to a file.
C++ iostream objects
C++ iostream objects
The <iostream> library provides objects which can read user input and output data to the console or to a file.
A list of all iostream objects can be found in the table below.
| Object | Description |
|---|---|
| cerr | An output stream for error messages |
| clog | An output stream to log program information |
| cin | An input stream that reads keyboard input from the console by default |
| cout | An output stream which writes output to the console by default |
| wcerr | The same as cerr but outputs wide char ( wchar_t ) data rather than char data |
| wclog | The same as clog but outputs wide char ( wchar_t ) data rather than char data |
| wcin | The same as cin but interprets each input character as a wide char ( wchar_t ) |
| wcout | The same as cout but outputs wide char ( wchar_t ) data rather than char data |