Annex D (normative) Compatibility features [depr]

D.14 Relational operators [depr.relops]

1
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The header <utility> has the following additions:
namespace std::rel_ops { template<class T> bool operator!=(const T&, const T&); template<class T> bool operator> (const T&, const T&); template<class T> bool operator<=(const T&, const T&); template<class T> bool operator>=(const T&, const T&); }
2
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To avoid redundant definitions of operator!= out of operator== and operators >, <=, and >= out of operator<, the library provides the following:
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template<class T> bool operator!=(const T& x, const T& y);
3
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Preconditions: T meets the Cpp17EqualityComparable requirements (Table 28).
4
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Returns: !(x == y).
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template<class T> bool operator>(const T& x, const T& y);
5
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Preconditions: T meets the Cpp17LessThanComparable requirements (Table 29).
6
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Returns: y < x.
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template<class T> bool operator<=(const T& x, const T& y);
7
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Preconditions: T meets the Cpp17LessThanComparable requirements (Table 29).
8
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Returns: !(y < x).
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template<class T> bool operator>=(const T& x, const T& y);
9
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Preconditions: T meets the Cpp17LessThanComparable requirements (Table 29).
10
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Returns: !(x < y).