Re: choice of fixed point type

[tmoran@bix.com]

>Keeping us in suspense, Tom?  Which three gave you the good information?  Which
>one got it wrong?   Eager minds want to know.  :-)
  Given:
with Ada.Text_Io;

procedure test is

  type duration is delta 1.0 range 0.0 .. 60.0;
  f : float;
  i : integer := 3;

begin
  f := float(16.0/i);
  ada.text_io.put_line(float'image(f));

end test;

  Gnat 3.12p NT gave no error message and used, apparently,
Standard.Duration

  ObjectAda 7.1.2.205 said
--------------------Target: Win32 (Intel) Debug--------------------
test.adb: Error: line 10 col 18 LRM:8.6(31), Expression is ambiguous when interpreted as an expression of any, Returning first interpretation

test.adb: Error: line 10 col 8 The expression is ambiguous, Continuing

Front end of ..\examples\test.adb failed with 2 errors.
Tool execution failed.

    "David W. Glessner" <dwglessn@collins.rockwell.com> tells me:
Sure 'nuff, Rational Apex 3.0.0b doesn't compile your program.

08:55:32 >>> Line 7: F := Float (0.000_0001 / I);
08:55:32 *** 0.000_0001 / I is ambiguous
08:55:32 *** "/" could be (in TEST_FIXED_DURATION)
Test_Fixed_Duration.Duration."/"
08:55:32 *** "/" could be (in STANDARD) "/"

  Janus 3.1.1e NT said:
In File F:\test.ada at line 10
--------------
    9:  begin
   10:    f := float(16.0/i);
-------------------------^
*ERROR* Unable to resolve expression (6.4.6) [RM 5.2(4)]