I seem to recall some sort of mechanism that someone coded in C++ to prevent discarding the return value of a function. But I can't remember what it was, or quite for certain if I'm remembering it ...

Modern C++. How To Write a Function That Returns More Than One Value. Like magic, tuples make the impossible possible. Yep, we're talking here about one little corner in the Standard Template Library ...

M4N asks:. Is there a reason why functions in most(?) programming languages are designed to support any number of input parameters but only one return value?