# std::is_eq, std::is_neq, std::is_lt, std::is_gt, std::is_lteq, std::is_gteq

From cppreference.com
< cpp‎ | utility

Defined in header `<compare>` |  |
constexpr bool is_eq( std::partial_ordering cmp ) noexcept; | (1) | (since C++20)
constexpr bool is_neq( std::partial_ordering cmp ) noexcept; | (2) | (since C++20)
constexpr bool is_lt( std::partial_ordering cmp ) noexcept; | (3) | (since C++20)
constexpr bool is_lteq( std::partial_ordering cmp ) noexcept; | (4) | (since C++20)
constexpr bool is_gt( std::partial_ordering cmp ) noexcept; | (5) | (since C++20)
constexpr bool is_gteq( std::partial_ordering cmp ) noexcept | (6) | (since C++20)

These functions take a result of 3-way comparison and convert it to the result of one of the six relational operators

Specifically, these functions return

1) cmp == 0
2) cmp != 0
3) cmp < 0
4) cmp <= 0
5) cmp > 0
6) cmp >= 0

### Parameters

cmp | - | result of 3-way comparison

### Return value

bool result of the corresponding relational operation

### Example

| This section is incomplete Reason: no example

### See also

partial_ordering (C++20) | the result type of 3-way comparison that supports all 6 operators, is not substitutable, and allows incomparable values (class)

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/utility/compare/named_comparison_functions&oldid=146589"