From bug-request at octave dot org Tue Jan 18 04:58:52 2005
Subject: Bug in mkstemp
From: Mats Jansson <mats dot e dot jansson at home dot se>
To: bug at octave dot org
Date: Tue, 18 Jan 2005 11:57:46 +0100


Hi,

two things about the function 'mkstemp':

1)  Error in doc-string: "tmpfile" should be changed to "mkstemp".

2)  When mkstemp fails to create a temp-file, it returns the
     error-message in the second output argument, not the third as said
     in the documentation.  Is this a documentation error or an error
     in the code?


octave:6> help mkstemp
mkstemp is a built-in function

  -- Built-in Function: [FID, NAME, MSG] = tmpfile (TEMPLATE, DELETE)
                                           ^^^^^^^

[snip]

      If successful, FID is a valid file ID, NAME is the name of the
      file, and and MSG is an empty string.  Otherwise, FID is -1, NAME
      is empty, and MSG contains a system-dependent error message.

octave:7> [fid, name, msg] = mkstemp ("/mkstemp-XXXXXX", true)
fid = -1
name = Permission denied
msg =
octave:8> isempty (msg)
ans = 1

Regards
Mats Jansson



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