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boost::algorithm::is_decreasing
// In header: <boost/algorithm/cxx11/is_sorted.hpp> template<typename R> bool is_decreasing(const R & range);
| ![[Note]](../../../../doc/src/images/note.png) | Note | 
|---|---|
| This function will return true for sequences that contain items that compare equal. If that is not what you intended, you should use is_strictly_decreasing instead. | 
| Parameters: | 
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| Returns: | true if the entire sequence is decreasing; i.e, each item is less than or equal to the previous one. |