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Like records, tuples are a composite of other types of data. But instead of naming the components, they are identified by position. Here are some examples of tuples: (1,2,10)(true,"Hello")( [1;2;3],(0.5,'X')) A tuple with two components is called a pair. A tuple with three components is called a triple.
27 lip 2021 · Since the length of OCaml tuples is part of the type and hence known (and fixed) at compile time, you get the n-th item by straightforward pattern matching on the tuple. For the same reason, the problem of extracting the n-th element of an "arbitrary-length tuple" cannot occur in practice - such a "tuple" cannot be expressed in OCaml's type system.
To access specific elements of a tuple without binding them to variables, you can use indexing. Indexing in OCaml starts from 0, so the first element can be accessed with index 0, the second with index 1, and so on.
Tuples. Here is a tuple containing two values, also known as a pair. # (3, 'K');;-: int * char = (3, 'K') That pair contains the integer 3 and the character 'K'; its type is int * char. The * symbol stands for product type. This generalises to tuples with 3 or more elements. For instance, (6.28, true, "hello") has type float * bool * string.
core v0.17.1 (latest): Industrial strength alternative to OCaml's standard library
In OCaml programming, tuples are a fundamental data structure that allows grouping multiple values of different types into a single entity. Tuples provide a convenient way to store and manipulate related data, making them a valuable tool for various programming tasks.
In OCaml, records and tuples are important data structures used to represent structured data. Records are similar to structs in other programming languages, while tuples are ordered collections of elements.
