In cryptography, a hard-core predicate of a one-way function f is a predicate b (i.e., a function whose output is a single bit) which is easy to compute (as a function of x) but is hard to compute given f(x).

What is a predicate core?

In cryptography, a hard-core predicate of a one-way function f is a predicate b (i.e., a function whose output is a single bit) which is easy to compute (as a function of x) but is hard to compute given f(x).

What is relationship in Core Data?

Relationship Fundamentals A relationship specifies the entity, or the parent entity, of the objects at the destination. This entity can be the same as the entity at the source (a reflexive relationship).

What is a Core Data fetched property?

Fetched Properties in Core Data are properties that return an array value from a predicate. A fetched property predicate is a Core Data query that evaluates to an array of results.

What is inverse relationship in Core Data?

Inverse relationships enable Core Data to propagate change in both directions when an instance of either the source or destination type changes. Every relationship must have an inverse. When creating relationships in the Graph editor, you add inverse relationships between entities in a single step.

What is NSSet in Swift?

NSSet is “toll-free bridged” with its Core Foundation counterpart, CFSet . See Toll-Free Bridging for more information on toll-free bridging. In Swift, use this class instead of a Set constant in cases where you require reference semantics.

How do you write a predicate in Swift?

In Swift, constructors skip the “blahWith…” part and just use the class name as a function and then go straight to the arguments, so [NSPredicate predicateWithFormat: …] would become NSPredicate(format: …) . (For another example, [NSArray arrayWithObject: …] would become NSArray(object: …) .

What is Core Data inverse relationship?

What is Core Data used for?

Core Data is a framework that you use to manage the model layer objects in your application. It provides generalized and automated solutions to common tasks associated with object life cycle and object graph management, including persistence.

What is transformable in Core Data?

When you declare a property as Transformable Core Data converts your custom data type into binary Data when it is saved to the persistent store and converts it back to your custom data type when fetched from the store. It does this through a value transformer.

What are Core Data delete rules?

A delete rule defines what happens when the record that owns the relationship is deleted. Select the notes relationship of the Category entity and open the Data Model Inspector on the right. By default, the delete rule of a relationship is set to nullify….Delete Rules

  • No Action.
  • Nullify.
  • Cascade.
  • Deny.

What is the predicate of a sentence?

The predicate is the portion of the sentence that contains the verb (or verb phrase); in very short, simple sentences, it might be only a verb. The predicate tells what happened to the subject or what state it’s in. In the case of verbs that aren’t actions,…

What is the difference between simple predicate and complete predicate?

A simple predicate is a verb; a complete predicate is everything that’s not the subject. Sentences Vs. Clauses A sentence cannot be complete (independent) unless it has both a subject and a predicate; otherwise, a group of words is just a phrase or a clause.

What is an example of a compound predicate?

A predicate is compound if one subject has more than one verb associated with it, joined with a conjunction. In this example, the subject Sandy has two predicates joined by and. She prefers to run first and then eat breakfast afterward . Sandy prefers to run first and then eat breakfast afterward.