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Functions that return values representing true or false are called predicates. C++ offers several predicates that test the relationship between pairs of numbers:
| Predicate | Purpose\ | |||||
== | Are two numbers equal?\
!= | Are two numbers not equal?\
> | Is the first number greater than the second?\
< | Is the first number less than the second?\
>= | Is the first number greater than or equal to the second?\
<= | Is the first number less than or equal to the second?\ |