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  2. new and delete (C++) - Wikipedia

    en.wikipedia.org/wiki/New_and_delete_(C++)

    This requests a memory buffer from the free store that is large enough to hold a contiguous array of N objects of type T, and calls the default constructor on each element of the array. Memory allocated with the new[] must be deallocated with the delete[] operator, rather than delete. Using the inappropriate form results in undefined behavior ...

  3. Placement syntax - Wikipedia

    en.wikipedia.org/wiki/Placement_syntax

    The Standard C++ syntax for a non-placement new expression is [2]. new new-type-id ( optional-initializer-expression-list). The placement syntax adds an expression list immediately after the new keyword.

  4. Destructor (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Destructor_(computer...

    If the object was created as an automatic variable, its lifetime ends and the destructor is called automatically when the object goes out of scope. Because C++ does not have garbage collection, if the object was created with a new statement (dynamically on the heap), then its destructor is called when the delete operator is applied to a pointer ...

  5. Pointer (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Pointer_(computer_programming)

    The void pointer, or void*, is supported in ANSI C and C++ as a generic pointer type. A pointer to void can store the address of any object (not function), [a] and, in C, is implicitly converted to any other object pointer type on assignment, but it must be explicitly cast if dereferenced.

  6. Void safety - Wikipedia

    en.wikipedia.org/wiki/Void_safety

    where f denotes an operation and x denotes a reference to some object. At execution time, however, a reference can be void (or null). In such cases, the call above will be a void call, leading to a run-time exception, often resulting in abnormal termination of the program. Void safety is a static (compile-time) guarantee that a void call will ...

  7. Operators in C and C++ - Wikipedia

    en.wikipedia.org/wiki/Operators_in_C_and_C++

    All the operators (except typeof) listed exist in C++; the column "Included in C", states whether an operator is also present in C. Note that C does not support operator overloading. When not overloaded, for the operators && , || , and , (the comma operator ), there is a sequence point after the evaluation of the first operand.

  8. Talk:Operators in C and C++ - Wikipedia

    en.wikipedia.org/wiki/Talk:Operators_in_C_and_C++

    Recently, there was a revert to remove the Label Value Operator && from the list of C/C++ operators. While it is true that the operator is not at all standard ISO C/C++, it is a non-standard extension to some dialects, one of which is documented here. This raises the question of whether or not there should be a seperate table for operators ...

  9. Null object pattern - Wikipedia

    en.wikipedia.org/wiki/Null_object_pattern

    In object-oriented computer programming, a null object is an object with no referenced value or with defined neutral (null) behavior.The null object design pattern, which describes the uses of such objects and their behavior (or lack thereof), was first published as "Void Value" [1] and later in the Pattern Languages of Program Design book series as "Null Object".