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Parametric polymorphism was first introduced to programming languages in ML in 1975. Today it exists in Standard ML , OCaml , F# , Ada , Haskell , Mercury , Visual Prolog , Scala , Julia , Python , TypeScript , C++ and others.
- Polymorphism (computer science)
Parametric polymorphism allows a function or a data type to...
- Polymorphism (computer science)
16 de abr. de 2012 · Wikipedia: In programming languages and type theory, parametric polymorphism is a way to make a language more expressive, while still maintaining full static type-safety. Using parametric polymorphism, a function or a data type can be written generically so that it can handle values identically without depending on their type.
16 de abr. de 2020 · Parametric polymorphism occurs when a routine, type or class definition is parameterized by one or more types. It allows the actual parameter type to be selected by the user. This way, it is possible to define types or functions that are generics, which can be expressed by using type variables for the parameter type.
System F formalizes parametric polymorphism in programming languages, thus forming a theoretical basis for languages such as Haskell and ML. It was discovered independently by logician Jean-Yves Girard (1972) and computer scientist John C. Reynolds.
Parametric polymorphism refers to code that is written without knowledge of the actual type of the arguments; the code is parametric in the type of the parameters. Examples include polymorphic functions in ML, or generics in Java 5. We consider parametric polymorphism in more detail.
30.1 Parameterized Types. Consider what would be the intended type of map in Pyret: ((A -> B), List<A> -> List<B>) This says that for all types A and B, map consumes a function that generates B values from A values, and a list of A values, and generates the corresponding list of B values. Here, A and B are not concrete types; rather, each is a ...
