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Comparison operators - cppreference. com Calling the operator() of the pointer type specializations of std::less, std::greater, std::less_equal, and std::greater_equal
Ranges library (since C++20) - cppreference. com The ranges library is an extension and generalization of the algorithms and iterator libraries that makes them more powerful by making them composable and less error-prone
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std::ranges::less - cppreference. com Unlike std::less, std::ranges::less requires all six comparison operators <, <=, >, >=, == and != to be valid (via the totally_ordered_with constraint) Example
std::less_equal - cppreference. com Checks if lhs is less than or equal to rhs Parameters Return value lhs <= rhs If T is a pointer type, the result is consistent with the implementation-defined strict total order over pointers Exceptions May throw implementation-defined exceptions Possible implementation Defect reports
std::sort - cppreference. com Sorts the elements in the range [first,last) in non-descending order The order of equal elements is not guaranteed to be preserved 1) Elements are sorted with respect to operator<(until C++20)std::less{}(since C++20)
C++ Operator Precedence - cppreference. com When parsing an expression, an operator which is listed on some row of the table above with a precedence will be bound tighter (as if by parentheses) to its arguments than any operator that is listed on a row further below it with a lower precedence For example, the expressions std::cout<< a b and *p++ are parsed as (std::cout<< a) b and *(p++), and not as std::cout<<(a b) or (*p)++
Comparison operators - cppreference. com Relational operators The relational operator expressions have the form 1) less-than expression 2) greater-than expression 3) less or equal expression 4) greater or equal expression where lhs, rhs - expressions that both have real type or both have pointer to object type