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In object-oriented (OO) and functional programming, an immutable object (unchangeable [1] object) is an object whose state cannot be modified after it is created. [2] This is in contrast to a mutable object (changeable object), which can be modified after it is created. [3]
Each character in the string key set is represented via individual bits, which are used to traverse the trie over a string key. The implementations for these types of trie use vectorized CPU instructions to find the first set bit in a fixed-length key input (e.g. GCC 's __builtin_clz() intrinsic function ).
Ada, C, C++, Java, Cobol, Lisp, Python, Ruby, Smalltalk — D-Bus Message Protocol freedesktop.org — Yes D-Bus Specification: Yes No No Partial (Signature strings) Yes — Efficient XML Interchange (EXI) W3C: XML, Efficient XML Yes Efficient XML Interchange (EXI) Format 1.0: Yes XML: XPointer, XPath: XML Schema: DOM, SAX, StAX, XQuery, XPath —
Merge these n arrays with the k-way merge algorithm. The resulting array is sorted and the algorithm has a running time in O ( n f( n )). This is a contradiction to the well-known result that no comparison-based sorting algorithm with a worst case running time below O ( n log n ) exists.
To remedy problems 1 and 5, RISC-V's vector extension uses an alternative approach: instead of exposing the sub-register-level details to the programmer, the instruction set abstracts them out as a few "vector registers" that use the same interfaces across all CPUs with this instruction set. The hardware handles all alignment issues and "strip ...
Merge is one of the basic operations in the Minimalist Program, a leading approach to generative syntax, when two syntactic objects are combined to form a new syntactic unit (a set). Merge also has the property of recursion in that it may be applied to its own output: the objects combined by Merge are either lexical items or sets that were ...
The strings over an alphabet, with the concatenation operation, form an associative algebraic structure with identity element the null string—a free monoid. Sets of strings with concatenation and alternation form a semiring, with concatenation (*) distributing over alternation (+); 0 is the empty set and 1 the set consisting of just the null ...
One family of algorithms, known as path compression, makes every node between the query node and the root point to the root. Path compression can be implemented using a simple recursion as follows: function Find(x) is if x.parent ≠ x then x.parent := Find(x.parent) return x.parent else return x end if end function