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std.algorithm

This package implements generic algorithms oriented towards the processing of sequences. Sequences processed by these functions define range-based interfaces. See also Reference on ranges and tutorial on ranges.

Algorithms are categorized into the following submodules:


Submodule	Functions
Searching	all any balancedParens boyerMooreFinder canFind commonPrefix count countUntil endsWith find findAdjacent findAmong findSkip findSplit findSplitAfter findSplitBefore minCount maxCount minElement maxElement minIndex maxIndex minPos maxPos skipOver startsWith until
Comparison	among castSwitch clamp cmp either equal isPermutation isSameLength levenshteinDistance levenshteinDistanceAndPath max min mismatch predSwitch
Iteration	cache cacheBidirectional chunkBy cumulativeFold each filter filterBidirectional fold group joiner map mean permutations reduce splitWhen splitter substitute sum uniq
Sorting	completeSort isPartitioned isSorted isStrictlyMonotonic ordered strictlyOrdered makeIndex merge multiSort nextEvenPermutation nextPermutation partialSort partition partition3 schwartzSort sort topN topNCopy topNIndex
Set operations (setops)	cartesianProduct largestPartialIntersection largestPartialIntersectionWeighted multiwayMerge multiwayUnion setDifference setIntersection setSymmetricDifference
Mutation	bringToFront copy fill initializeAll move moveAll moveSome moveEmplace moveEmplaceAll moveEmplaceSome remove reverse strip stripLeft stripRight swap swapRanges uninitializedFill

Many functions in this package are parameterized with a predicate. The predicate may be any suitable callable type (a function, a delegate, a functor, or a lambda), or a compile-time string. The string may consist of any legal D expression that uses the symbol a (for unary functions) or the symbols a and b (for binary functions). These names will NOT interfere with other homonym symbols in user code because they are evaluated in a different context. The default for all binary comparison predicates is "a == b" for unordered operations and "a < b" for ordered operations.

Example

int[] a = ...;
static bool greater(int a, int b)
{
    return a > b;
}
sort!greater(a);           // predicate as alias
sort!((a, b) => a > b)(a); // predicate as a lambda.
sort!"a > b"(a);           // predicate as string
                           // (no ambiguity with array name)
sort(a);                   // no predicate, "a < b" is implicit

License:

Boost License 1.0.

Authors:

Andrei Alexandrescu

Source std/algorithm/package.d

Library Reference

std.algorithm