C++
- Getting started with C++
- Awesome Book
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- Alignment
- Argument Dependent Name Lookup
- Arithmitic Metaprogramming
- Arrays
- Atomic Types
- Attributes
- auto
- Basic input/output in c++
- Basic Type Keywords
- Bit fields
- Bit Manipulation
- Bit Operators
- Build Systems
- C incompatibilities
- C++ Containers
- C++ Debugging and Debug-prevention Tools & Techniques
- C++ function "call by value" vs. "call by reference"
- C++ Streams
- C++11 Memory Model
- Callable Objects
- Classes/Structures
- Client server examples
- Common compile/linker errors (GCC)
- Compiling and Building
- Concurrency With OpenMP
- Const Correctness
- const keyword
- Constant class member functions
- constexpr
- Copy Elision
- Copying vs Assignment
- Curiously Recurring Template Pattern (CRTP)
- Data Structures in C++
-
Date and time using
header - decltype
- Design pattern implementation in C++
- Digit separators
- Enumeration
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- Floating Point Arithmetic
- Flow Control
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- Friend keyword
- Function Overloading
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- Futures and Promises
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- Internationalization in C++
- Iteration
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- More undefined behaviors in C++
- Move Semantics
- mutable keyword
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- One Definition Rule (ODR)
- Operator Overloading
- operator precedence
- Optimization
- Optimization in C++
- Overload resolution
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- Recursion in C++
- Recursive Mutex
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- Return Type Covariance
- Returning several values from a function
- RTTI: Run-Time Type Information
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- SFINAE (Substitution Failure Is Not An Error)
- Side by Side Comparisons of classic C++ examples solved via C++ vs C++11 vs C++14 vs C++17
- Singleton Design Pattern
- Smart Pointers
- Sorting
- Special Member Functions
- Standard Library Algorithms
- static_assert
- std::any
- std::array
- std::atomics
- std::forward_list
- std::function: To wrap any element that is callable
- std::integer_sequence
- std::iomanip
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- std::set and std::multiset
- std::string
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- Storage class specifiers
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- The ISO C++ Standard
- The Rule of Three, Five, And Zero
- The This Pointer
- Thread synchronization structures
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- Trailing return type
- type deduction
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- Undefined Behavior
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- Unit Testing in C++
- Unnamed types
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- User-Defined Literals
- Using declaration
- Using std::unordered_map
- Value and Reference Semantics
- Value Categories
- Variable Declaration Keywords
- Virtual Member Functions
C++ std::iomanip std::setw
Example
int val = 10;
// val will be printed to the extreme left end of the output console:
std::cout << val << std::endl;
// val will be printed in an output field of length 10 starting from right end of the field:
std::cout << std::setw(10) << val << std::endl;
This outputs:
10
10
1234567890
(where the last line is there to aid in seeing the character offsets).
Sometimes we need to set the width of the output field, usually when we need to get the output in some structured and proper layout. That can be done using std::setw of std::iomanip.
The syntax for std::setw is:
std::setw(int n)
where n is the length of the output field to be set
