Steven Edwards wrote: > Banner: > > CMU Common Lisp 19e (19E), running on gail > With core: /Users/sje/cmucl-19e-x86-darwin/lib/cmucl/lib/lisp.core > Dumped on: Thu, 2008-05-01 20:38:02-04:00 on macmini > See <http://www.cons.org/cmucl/> for support information. > Loaded subsystems: > Python 1.1, target Intel x86 > CLOS based on Gerd's PCL 2004/04/14 03:32:47 > > > Three related bugs: > > (defun bug0 (my-stream) > (write-char #\1 my-stream) > (format my-stream "~D" 2) > (write-char #\3 my-stream)) > Let's see. CLHS says for write-char, T means *terminal-io*. And T for format means *standard-output*. Hence, write-char and format send their output to different places. On cmucl, *standard-output* and *terminal-io* are different streams. Looking at the stream objects, they go to different Unix file descriptors, and the file descriptors are different.
For all the tests you provide, if you specify *standard-output*, you get the results you want. I guess gcl and clisp have *terminal-io* and *standard-output* being essentially the same stream. I think this is allowed behavior. Ray, who hopes he got this right.
