[M3devel] Mailing list archive

[Olaf Wagner]

Quoting Roland Illig <roland.illig at gmx.de>:

> Hi,
>
> I would like to fix a bug I found in 2005, but the bug's details are
> not in trac, but only in a mailing list archive, which isn't available
> anymore.
>
> https://projects.elego.de/cm3/ticket/640
>
> Can anyone provide me with the details?

Here is a copy of your old mail:

   X-Authenticated: #530625
   Date: Tue, 11 Oct 2005 10:57:29 +0200
   From: Roland Illig <roland.illig at gmx.de>
   To: m3devel at elegosoft.com
   Subject: quake bug: local variable disappears
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   proc first_of(arr) is
     foreach e in arr
       if not empty(e)
         return e
       end
     end
     return "cc"
   end

   proc compile_c(source, object, includes, o_flag, d_flag) is
     local cmd = []
     local cc = first_of([$CC, "cc"])
     cmd += [cc]
     return try_exec(cmd)
   end

   c_source("main")
   c_program("test")


   Critical Mass Modula-3 version d5.2.7
     last updated: 2004-10-31
   --- building in NetBSD2_i386 ---
   new source -> compiling main.c
   "/home/roland/proj/m3/c-test/src/m3makefile", line 14: quake runtime
   error: undefined variable: cmd

   The bug only shows because of:
   - the order of the two "local" statements in compile_c
   - a procedure is called
   - a "foreach" loop appears in the procedure
   - the "return" from inside the "foreach" loop is executed

   Roland
-- 
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