[erlang-patches] Correct ls/1 in c.erl

Björn Gustavsson <>
Mon May 20 10:28:30 CEST 2013

On Tue, May 14, 2013 at 3:53 PM, Bengt Kleberg

> New name for the patch since I had a momentary lapse of reason with git.
> This should include all the current suggestions.
> git fetch git://github.com/ebengt/otp.git correct_ls_file_v2
> https://github.com/ebengt/otp/compare/erlang:master...correct_ls_file_v2
> https://github.com/ebengt/otp/compare/erlang:master...correct_ls_file_v2.patch

Your new version looks better, but I still see room for improvement.

If I try to list a non-existing file I get:

1> ls("non-existing").
no such file or directoryok

It does not look pretty. There should be a new line
after the error message.

Also, attempting to list a non-existing file is not
tested in the test suite. I no that you cannot test
for the exact error message (it may be differently
worded on different platforms), but you can at least
make a smoke test so that the code will be covered.

Next issue:

2> ls("/dev/null").
Invalid directory or file

I find the error message confusing. What are
you trying to tell the user?

Why not simply print the file if it is not a


Björn Gustavsson, Erlang/OTP, Ericsson AB
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