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April 2011

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[cmucl-ticket] [cmucl] #43: unread-char doesn't change file-position
by cmucl 29 Jun '11

29 Jun '11

#43: unread-char doesn't change file-position ---------------------+------------------------------------------------------ Reporter: rtoy | Owner: Type: defect | Status: new Priority: major | Milestone: Component: Unicode | Version: 20b Keywords: | ---------------------+------------------------------------------------------ This test is from Douglas Crosher, on the maxima mailing list. {{{ (with-open-file (ostream "ctest.txt" :direction :output :external-format #+clisp "utf-8" #-clisp :utf-8) (dotimes (i 1000) (write-char (code-char #x1234) ostream))) (with-open-file (stream "ctest.txt" :direction :input :external-format #+clisp "utf-8" #-clisp :utf-8) (let ((p0 (file-position stream)) (ch (read-char stream))) (unread-char ch stream) (let ((p0* (file-position stream))) (if (eql p0* p0) "Ok" "Broken")))) }}} Cmucl returns "Broken" because {{{p0}}} = 0 but {{{p0*}}} = 2. I think {{{unread-char}}} didn't update everything needed by our unicode stream buffers. -- Ticket URL: <http://trac.common-lisp.net/cmucl/ticket/43> cmucl <http://common-lisp.net/project/cmucl> Cmucl is a high-performance, free Common Lisp implementation.

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[cmucl-ticket] [cmucl] #44: error with MAKE-METHOD-LAMBDA or method combinations
by cmucl 28 Apr '11

28 Apr '11

#44: error with MAKE-METHOD-LAMBDA or method combinations --------------------+------------------------------------------------------- Reporter: gpfeil | Owner: somebody Type: defect | Status: new Priority: minor | Milestone: Component: Core | Version: 20b Keywords: | --------------------+------------------------------------------------------- In a project I have on GitHub, Quid Pro Quo, many of my tests fail with an error, “Invalid number of arguments: 1”. The top of the stack: 0: ("LAMBDA (.METHOD-ARGS. .NEXT-METHODS.)" 1 (NIL #<QUID-PRO-QUO- TEST::TEST-2 {494C20E5}>) #<unused-arg>)[:EXTERNAL] Locals: #:G11 = 1 #:G12 = (NIL #<QUID-PRO-QUO-TEST::TEST-2 {494C20E5}>) leads me to believe that it has something to do with MAKE-METHOD-LAMBDA. There are more details in an issue on that project: https://github.com/sellout/quid-pro-quo/issues/2 I'm not yet at the point of thinking this is a CMUCL bug, as I know I am dealing with areas of Lisp that are relatively fuzzy and there are a number of times I've had it work on one compiler but not another. Currently, SBCL, Clozure CL, and Allegro pass all but one test (which is expected to fail), so I'm slowly building up my confidence. But CMUCL and LispWorks are still eluding me. -- Ticket URL: <http://trac.common-lisp.net/cmucl/ticket/44> cmucl <http://common-lisp.net/project/cmucl> Cmucl is a high-performance, free Common Lisp implementation.

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