Functional programming defined Functions are fundamental to code organization; they exist in all higher order programming languages.

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?

The C language allows you to provide a pointer to a function, just like a pointer to a variable. In both cases, a C pointer contains the address and the type information about the entity being pointed ...

Conveniently, some of C’s features, both in the language and the pre-processor, can be co-opted into providing Modula-like capabilities. These features, in conjunction with a set of conventions, make ...