std::stable_sort

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Defined in header <algorithm>
​template< class RandomAccessIterator > void stable_sort( RandomAccessIterator first, RandomAccessIterator last );​	(1)
​template< class RandomAccessIterator, class Compare > void stable_sort( RandomAccessIterator first, RandomAccessIterator last, Compare comp );​	(2)

Sorts the elements in the range [first, last) in ascending order. The order of equal elements is guaranteed to be preserved. The first version uses ​operator<​ to compare the elements, the second version uses the given comparison function comp.

Contents 1 Parameters 2 Return value 3 Example 4 Complexity 5 See also

Parameters

first, last	-	the range of elements to sort
comp	-	comparison function which returns ​​true​ if the first argument is less than the second. The signature of the comparison function should be equivalent to the following: ​bool cmp(const Type1 &a, const Type2 &b);​ The signature does not need to have ​const &​, but the function must not modify the objects passed to it. The types ​Type1​ and ​Type2​ must be such that an object of type ​RandomAccessIterator​ can be dereferenced and then implicitly converted to both of them. ​

Return value

(none)

Example

This section is incomplete

Complexity

O(N*log²(N)), where ​N = std::distance(first, last)​ applications of cmp. If additional memory is available, then the complexity is O(N*log(N)

See also

partial_sort	sorts the first N elements of a range (function template)
sort	sorts a range into ascending order (function template)