Subroutines

Functions in BLISS

In BLISS, the unit of reusable code is the routine. As a structured, imperative systems language, BLISS leans heavily on routines to break programs into named, callable pieces - exactly the kind of …

Functions in C

Functions are the unit of organization in C. As a procedural, imperative language, C builds programs by composing small, named blocks of code that each do one job. You have already met one function - …

Functions in ALGOL 60

Introduction

In ALGOL 60 the unit of reusable code is the procedure. A procedure groups statements under a name so they can be called as many times as you like. ALGOL 60 draws a small but important …

Functions in ALGOL 68

Introduction

In ALGOL 68 there is no separate keyword for “functions” versus “subroutines” — everything is a procedure, declared with the PROC mode. A procedure that yields a …

Functions in APL

In most languages, a function is a named block of statements you call with parentheses. APL takes a different view. Because APL is array-oriented and functional, a function is simply a rule that …

Functions in Assembly

In high-level languages, a function is a built-in abstraction: you write def, fn, or void name() and the compiler arranges everything behind the scenes. In assembly, there is no function keyword. A …

Functions in ABAP

Reusable units of logic are the backbone of any non-trivial program, and ABAP - a multi-paradigm language that grew from procedural roots in 1983 into full object orientation in 1999 - offers more …

Functions in Ada

In Ada, the units of reusable behavior are called subprograms, and they come in two distinct flavors: functions, which compute and return a value, and procedures, which perform actions but return …