How to resolve the algorithm Variadic function step by step in the BCPL programming language

Published on 12 May 2024 09:40 PM
#Bcpl

How to resolve the algorithm Variadic function step by step in the BCPL programming language

Table of Contents

Problem Statement

Create a function which takes in a variable number of arguments and prints each one on its own line. Also show, if possible in your language, how to call the function on a list of arguments constructed at runtime.

Functions of this type are also known as Variadic Functions.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Variadic function step by step in the BCPL programming language

Source code in the bcpl programming language

get "libhdr"

// A, B, C, etc are dummy arguments. If more are needed, more can be added.
// Eventually you will run into the compiler limit. 
let foo(num, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O) be
    // The arguments can be indexed starting from the first one. 
    for i=1 to num do writef("%S*N", (@num)!i)
    
// You can pass as many arguments as you want. The declaration above guarantees
// that at least the first 16 arguments (including the number) will be available,
// but you certainly needn't use them all. 
let start() be
    foo(5, "Mary", "had", "a", "little", "lamb")

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