The C Standard Library
The C++ Standard Library
The C++ STL Library
C++ Programming Resources
Selected Reading
The C++ Standard Library
- C++ Library - <valarray>
- C++ Library - <utility>
- C++ Library - <typeinfo>
- C++ Library - <tuple>
- C++ Library - <thread>
- C++ Library - <string>
- C++ Library - <stdexcept>
- C++ Library - <regex>
- C++ Library - <numeric>
- C++ Library - <new>
- C++ Library - <memory>
- C++ Library - <locale>
- C++ Library - <limits>
- C++ Library - <functional>
- C++ Library - <exception>
- C++ Library - <complex>
- C++ Library - <atomic>
- C++ Library - <streambuf>
- C++ Library - <sstream>
- C++ Library - <ostream>
- C++ Library - <istream>
- C++ Library - <iostream>
- C++ Library - <iosfwd>
- C++ Library - <ios>
- C++ Library - <iomanip>
- C++ Library - <fstream>
- C++ Library - Home
The C++ STL Library
- C++ Library - <iterator>
- C++ Library - <algorithm>
- C++ Library - <vector>
- C++ Library - <unordered_set>
- C++ Library - <unordered_map>
- C++ Library - <stack>
- C++ Library - <set>
- C++ Library - <queue>
- C++ Library - <map>
- C++ Library - <list>
- C++ Library - <forward_list>
- C++ Library - <deque>
- C++ Library - <bitset>
- C++ Library - <array>
C++ Programming Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
C++ Library - <ios>
C++ Library - <ios>
Introduction
The C++ standard pbraries provide an extensive set of input/output capabipties which we will see in subsequent chapters. This chapter will discuss very basic and most common I/O operations required for C++ programming.
Input-Output base classes and types for the IOStream hierarchy of classes as shown below −
Types
Class templates
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Base class for streams (type-dependent components | |
| 2 | Stream position class template |
Classes
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Base class for streams (type-dependent components) | |
| 2 | Base class for streams | |
| 3 | Base class for wide character streams |
Other types
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Input/output error conditions | |
| 2 | Stream offset type | |
| 3 | Stream position type | |
| 4 | Stream size type | |
| 5 | Wide stream position type |
Format flag manipulators (functions)
Independent flags (switch on) −
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Alphanumerical bool values | |
| 2 | Show numerical base prefixes | |
| 3 | Show decimal point | |
| 4 | Show positive signs | |
| 5 | Skip whitespaces | |
| 6 | Flush buffer after insertions | |
| 7 | Generate upper-case letters |
Independent flags (switch off) −
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | No alphanumerical bool values | |
| 2 | Do not show numerical base prefixes | |
| 3 | Do not show decimal point | |
| 4 | Do not show positive signs | |
| 5 | Do not skip whitespaces | |
| 6 | Do not force flushes after insertions | |
| 7 | Do not generate upper case letters |
Numerical base format flags ("basefield" flags) −
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Use decimal base | |
| 2 | Use hexadecimal base | |
| 3 | Use octal base |
Floating-point format flags ("floatfield" flags) −
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Use fixed floating-point notation | |
| 2 | Use scientific floating-point notation |
Adustment format flags ("adjustfield" flags) −
| Sr.No. | Member types | Definition |
|---|---|---|
| 1 | Adjust field by inserting characters at an internal position | |
| 2 | Adjust output to the left | |
| 3 | Adjust output to the right |