greater_equal

Library:  General utilities

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A binary function object that returns true if its first argument is greater than or equal to its second

#include <functional>

namespace std {
  template <class T>
  struct greater_equal;
}

greater_equal is a binary function object. Its operator() returns true if x is greater than or equal to y. You can pass a greater_equal object to any algorithm that requires a binary function. For example, the sort() algorithm can accept a binary function as an alternate comparison object to sort a sequence. greater_equal would be used in that algorithm in the following manner:

vector<int> vec1;
.
.
sort(vec1.begin(), vec1.end(),greater_equal<int>());

After this call to sort(), vec1 is sorted in descending order.

Function Objects

ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.3.3