Module: Standard C++ Library Library: General utilities
Operators for the C++ Standard Template Library
#include <utility>
namespace 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&);
}
The STL includes the following operators to avoid redundant definitions of operator!= out of operator==, and of operators >, <=, and >= out of operator<:
operator!=(x,y) returns !(x==y)
operator>(x,y) returns y>x
operator<=(x,y) returns !(y<x)
operator>=(x,y) returns !(x<y)
To avoid clashes with other global operators, these definitions are contained in the namespace rel_ops. To use them, either scope explicitly or include a using declaration, such as using namespace rel_ops.
ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.2
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Licensed under the Apache License, Version 2.0.
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