CODEWITHSUNDEEP
erlangerlang-shell
Andy K
Andy K

Reputation: 5044

why is this function not compiling in Erlang

I'm a newbie in Erlang so stay with me.

I've got this function in erlang that I'm trying to compile, through the file animal.erl.

module(animal).
help_moi(Animal) ->
    Talk = if Animal == cat -> "miaou";
              Animal == beef -> "meuuuh";
              Animal == dog -> "Wouf";
              Animal == tree -> "treee!";
              true -> "ezfezfezf,"
    end, %blablabla%
    {Animal ,"dit", ++ Talk ++ "!" }. %oh là là là%

I'm then compiling it with erl

c(animal).

And these the errors , I'm having

1> c(animal).
animal.erl:1: syntax error before: '.'
animal.erl:9: syntax error before: '++'
animal.erl:9: no module definition
error

I tried to look on google but not much documentations on it.

Any ideas?

Upvotes: 1

Views: 249

Answers (1)

legoscia
legoscia

Reputation: 41528

The module directive starts with a - character:

-module(animal).

And you have an extra comma between "dit" and ++ Talk.

After fixing those two things, I get a warning, not an error:

animal.erl:2: Warning: function help_moi/1 is unused

You probably want to export the function, so you can call it from outside the module:

-export([help_moi/1]).

Upvotes: 6

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