std::sort

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Defined in header <algorithm>

template< class RandomAccessIterator >
void sort( RandomAccessIterator first, RandomAccessIterator last );
(1)
template< class RandomAccessIterator, class Compare >
void 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 not guaranteed to be preserved. The first version uses ​operator< to compare the elements, the second version uses the given comparison function comp.

Contents

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

Complexity

O(N*log(N)), where ​N = std::distance(first, last) applications of cmp.

See also

partial_sort
sorts the first N elements of a range
(function template)
stable_sort
sorts a range of elements while preserving order between equal elements
(function template)
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