std::rel_ops(3)

NAME
std::rel_ops - The generated relational operators are sequestered here.

SYNOPSIS

  Functions
template<class _Tp> bool operator!= (const _Tp &__x, const _Tp &__y)
Defines != for arbitrary types, in terms of ==.
template<class _Tp> bool operator<= (const _Tp &__x, const _Tp &__y)
Defines <= for arbitrary types, in terms of <.
template<class _Tp> bool operator> (const _Tp &__x, const _Tp &__y)
Defines > for arbitrary types, in terms of <.
template<class _Tp> bool operator>= (const _Tp &__x, const _Tp &__y)
Defines >= for arbitrary types, in terms of <.

Detailed Description

The generated relational operators are sequestered here. Libstdc++ headers must not use the contents of rel_ops. User code should also avoid them, because unconstrained function templates are too greedy and can easily cause ambiguities.

C++20 default comparisons are a better solution.

Function Documentation

  template<class _Tp> bool std::rel_ops::operator!= (const _Tp & __x, const _Tp & __y) [inline]

Defines != for arbitrary types, in terms of ==.

Parameters
    __x A thing.
    __y Another thing.

Returns
    __x != __y

This function uses == to determine its result.

  template<class _Tp> bool std::rel_ops::operator<= (const _Tp & __x, const _Tp & __y) [inline]

Defines <= for arbitrary types, in terms of <.

Parameters
    __x A thing.
    __y Another thing.

Returns
    __x <= __y

This function uses < to determine its result.

  template<class _Tp> bool std::rel_ops::operator> (const _Tp & __x, const _Tp & __y) [inline]

Defines > for arbitrary types, in terms of <.

Parameters
    __x A thing.
    __y Another thing.

Returns
    __x > __y

This function uses < to determine its result.

  template<class _Tp> bool std::rel_ops::operator>= (const _Tp & __x, const _Tp & __y) [inline]

Defines >= for arbitrary types, in terms of <.

Parameters
    __x A thing.
    __y Another thing.

Returns
    __x >= __y

This function uses < to determine its result.

Author

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