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std::cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal, cmp_greater_equal

From cppreference.com
< cpp‎ | utility
 
C++
 
Utilities library
General utilities
Relational operators (deprecated in C++20)
Integer comparison functions
cmp_equalcmp_lesscmp_less_than
(C++20)(C++20)(C++20)  
cmp_not_equalcmp_greatercmp_greater_than
(C++20)(C++20)(C++20)
(C++20)
Swap and type operations
(C++20)
(C++14)
(C++11)
(C++23)
(C++11)
(C++23)