Most modern programming languages do not allow multiple return types (excluding scenarios like C#’s
out parameters or the newest use of
Tuples). This is because all languages implement the concept of mathematical functions, which for a given number of input parameters, produce only one result.
We can overcome this issue with the use of
objects or in older languages (like C) with a
struct of multiple values. I have seen even arrays employed in certain cases.
But intuitively, we programmers are been discouraged on creating a method that will end up needing to return more than one value; this is considered a bad practice.
But with all the updates in modern languages, does only the aforementioned concept in mathematics, justify why methods should return only one value? Is this only for readability and avoiding common misunderstandings between programmers, as also as compiler optimizations?
In other words, is this just a technical limitation or not?
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