Summing a number to the terms of a list

Ulf Wiger (ÄL2/EAB) <>
Tue Aug 12 16:58:08 CEST 2003


The shell guesses that the first two results are 
strings, as they are lists of numbers in the ASCII
range. The third list contains numbers greater than 
255, and is thus not formatted as a string.

This is a consequence of the fact that erlang lacks
a string data type. It's only a presentation issue.

Try e.g. io:format("~w~n", [sumit:sum_me(A,100)]).

/Uffe

-----Original Message-----
From: Jilani Khaldi [mailto:]
Sent: Tuesday, August 12, 2003 16:37
To: 
Subject: Summing a number to the terms of a list


Hi All,

Why this code gives me these different results?

-module(sumit).
-export([sum_me/2]).

sum_me(H|T,X) -> [(H+X)|sum_me(T,X)];
sum_me([], X) -> [].

Results:

A=[1,2,3].
sumit:sum_me(A,100).
"efg"

sumit:sum_me(A,200).
"\311\312\313"

sumit:sum_me(A,300).
[301,302,303] -- as I expected.

jilani



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