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
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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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- Returning several values from a function
- RTTI: Run-Time Type Information
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- 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
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- std::atomics
- std::forward_list
- std::function: To wrap any element that is callable
- std::integer_sequence
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- std::string
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- std::vector
- Storage class specifiers
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- The ISO C++ Standard
- The Rule of Three, Five, And Zero
- The This Pointer
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- 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++ constexpr
Introduction
constexpr is a keyword that can be used to mark a variable's value as a constant expression, a function as potentially usable in constant expressions, or (since C++17) an if statement as having only one of its branches selected to be compiled.
Remarks
The constexpr keyword was added in C++11 but for a few years since the C++11 standard was published, not all major compilers supported it. at the time that the C++11 standard was published. As of the time of publication of C++14, all major compilers support constexpr.
