- Snapshot 2010-12
Some of the important changes are listed below. See the release
notes for more details.
- ASDF2 updated to version 2.010.
- On x86,
IMAGPART no longer incorrectly returns 0
instead of the correct part of a complex number in some
- The command line parser now correctly handles the case where
"--" is the first command option.
build.sh was accidenally loading the site-init file, but it
- On sparc, the vops to add a float to a complex were broken,
resulting in a complex number with the float as realpart and
garbage for the imaginary part. This is now fixed.
XLIB::GET-BEST-AUTHORIZATION will now return authorization data
if the protocol is :local, if the xauth file contains just
"localhost/unix:0". Previously, no authorization data was
GET-BEST-AUTHORIZATION was looking for the
FORMAT signals an warning if
~:; is used inside
SET-SYSTEM-EXTERNAL-FORMAT was not actually setting the filename
encoding if given.
- 20b patch 000
A critical bug in
been fixed in the 2010-11 snapshot. A patch is provided now to fix
this issue in the 20b release. Installation
instructions are available.
- 2010-11 snapshot
- Some of the important changes are listed below. See the release
notes for more details.
- Update to Unicode 5.2.0.
- Support for character name completion for use with Slime.
COMPILE-FILE accepts a
:DECODING-ERROR argument that indicates how to handle
decoding errors when reading the file.
parameter to specify the external format for streams that are
READ-CHAR signals errors on non-character
READ-BYTE signals errors on character
streams. This is a change from previous versions. However, both
will work if the stream is a
IMAGPARG no longer
returns 0 instead of the correct part of a complex number in some
- 20b released
CMUCL 20b has been released. For information on the changes,
we refer the reader to the 20b release
- 2010-09 snapshot and 20b prerelease 2
CMUCL 20b prelease 2 has been released, in preparation for the
upcoming 20b release. Therefore there will not
be a 2010-09 snapshot.
- It is possible to hash NaNs (IEEE Not-a-Number)
- For SSE2 builds, = no longer signals an error if one operand is
NaN. This matches what happens for x87.
- For SSE2 builds,
SIGCONTEXT-FLOAT-REGISTER returned the wrong
value for single-floats. Easily noticead when tracing a function
with single-float arguments.
- Trac issue #36: file-position broken for utf16 and utf32.
FILE-POSITION returns the correct value for UTF16
and UTF32 when there is a BOM (byte-order mark) at the
beginning of the file.
- 2010-08 snapshot and 20b prerelease 1
CMUCL 20b prelease 1 has been released, in preparation for the
upcoming 20b release. Therefore there will not
be a 2010-08 snapshot.
Error handling has been added to external formats. Previously,
all external formats would silently replace bad encodings with a
suitable replacement character. Now, the user can specify how
the errors are handled by using the :DECODING-ERROR and
:ENCODING-ERROR parameters to OPEN. The default is the previous
For decoding-error, a character, symbol, or function
can be given. If a character, then that character is used as
the replacement character. For a symbol or function, it must be
a function of 3 arguments: a message string, the offending
octet (or nil), and the number of octets read in the encoding.
If the function returns, it must be the codepoint of the desired
For encoding-error, a character, symbol, or function can be
given. If a character, then that character is used as the
replacement character. For a symbol or function, it must be a
function of 2 arguments: a message string and the offending
codepoint. If the function returns, it must be the codepoint of
the desired replacement.
- Add EXT:LIST-ALL-EXTERNAL-FORMATS to list all known external
formats and their aliases.
- ADD EXT:DESCRIBE-EXTERNAL-FORMAT to print a description of the
specified exernal format. To support this, the macros
DEFINE-EXTERNAL-FORMAT and DEFINE-COMPOSING-EXTERNAL-FORMAT have
- The sparc port now supports the :executable feature.
- The Mac OS X port now support the :executable feature.
- A critical bug in the fast unicode stream buffering routine has
been fixed. This bug manifests itself by causing valid
sequences to be incorrectly decoded, resulting in a replacement
- UTF-8 correctly catches overlong sequences now. Previously,
overlong sequences were missed.
- When UTF-8 decoder encounters an overlong sequence, a surrogate
code point, or a too-large codepoint, the entire sequence is
converted to the replacement character. Previously, all of the
octets except the first were put back, and the data read again.
- Some GC improvements for sparc and ppc. (Changes for ppc
untested). GC could incorrectly move the PC and other
registers, causing a segfault.
- A bug inadvertently introduced in the 2010-04 non-unicode
snapshot has been fixed. The bug prevented the non-unicode
versions of CMUCL from loading the external format aliases
- With SSE2, the imaginary part of a (complex single-float) is now
- The method used to create executable images for Linux has been
cleaned up and should be far more robust against different
versions of the OS. The same is true on sparc as well as Mac OS
- 2010-07 snapshot
- DELETE-FILE, ENSURE-DIRECTORIES-EXIST, FILE-AUTHOR,
FILE-WRITE-DATE, and OPEN now merge the given pathname with
*DEFAULT-PATHNAME-DEFAULTS* as required by CLHS sec 19.2.3.
- When printing out argument values in the debugger and also
during TRACE, the incorrect values were returned for the SSE2 core.
This was caused by using the x87 values instead of the sse2 values
in the sigcontext. This is fixed now.
- 2010-06 snapshot
- ASDF2 and MK-DEFSYS have been added as contrib modules. Use
(require :asdf) or
(require :defsystem) to
- A new switch,
-help has been added. This prints
out a brief summary of the available command line switches and
exists. You may also use
- The GCD of positive integers sometimes returned a negative
result. This is fixed.
- 2010-05 snapshot
- Source information (file) for defstructs and deftypes is now
provided. DESCRIBE will print out the name of the file
where the defstruct/deftype was defined.
- WITH-STANDARD-IO-SYNTAX uses the standard pprint dispatch table
now instead of the current table.
- PRINC-TO-STRING binds *PRINT-READABLY* to NIL as required.
Previously, it used the current value of
- DEFCLASS signals an error if the class name already names a
- The :METHOD-CLASS argument to ENSURE-GENERIC-FUNCTION can be a
class object as well as a name.
- Recognize but ignore the :DECLARE argument to
- Default documentation for short form of
DEFINE-METHOD-COMBINATION is NIL, not "".
- MAC is an alias for the CR composing external
- Trac #39: non-standard-lexical syntax is fixed.
The reader macros are no longer installed by default. Use
(intl:install) to install them.
- 2010-04 snapshot
- Support for internalization/localization added. Messages from
CMUCL can be translated, but currently only a few messages in
Korean are translated. For fun, there is a full Pig Latin
translation (done by machine).
- COMPILE will update the macro-function if the specified names a
macro. (Previously, the fdefinition of the name was set.)
- CMUCL now signals a cerror when attempting to redefine a slot
accessor via DEFUN or COMPILE. If continued, the accessor is
redefined, and CMUCL assumes the new definition is usable as a
slot accessor. Previously, CMUCL would print a warning and
undefine the structure.
- An issue with SSE2 and GC hooks has been fixed. This shows up
when doing arithmetic with GC hooks that use the SSE registers.
The SSE state is saved along with the x87 state.
- 2010-03 snapshot
- FROUND is much faster for single and double float numbers.
This is available everywhere, except for x87 (due to potential
- CMUCL no longer segfaults on Linux when running on a kernel
without COMPAT_BRK. CMUCL will set the personality
appropriately and re-exec itself.
- GET-MACRO-CHARACTER would return the wrong second value because
*READTABLE* was always being used instead of the specified
- COMPILE-FILE was generating an error when compiling COMPILE
forms. This is fixed.
- A critical bug in SSE2 support has been fixed. Multiplying a
complex single-float by a single-float produced the wrong
- Fix issue where CMUCL does not correctly handle FLETs in
DEFMETHOD bodies which use the same name as that of the generic
function. The generic function was called instead of the local
- CMUCL would fail to compile external formats if *READTABLE* was
not the standard readtable. This is fixed by binding
*READTABLE* to the standard readtable before compiling the
- The debugger help messages is updated to reflect the actual
implementation. In particular L and PP have been updated, and help
for the DESCRIBE command has been added
- Some issues with FILE-POSITION on unicode builds have been
fixed. However, FILE-POSITION is still incorrect for files using
external formats that have a byte-order mark.
- The error-output and trace-file files are now opened using the
same external format as specified in COMPILE-FILE. This ensures
that these output files can correctly represent the same characters
as used for the input file.
- The debugger now opens files using the same external format as
used to compile them. Previously, the default format was used,
which would be wrong if the file is in a different format. This
resulted in the debugger being unable to find the source
- TRANSLATE-PATHNAMES now creates the resulting path to be an
absolute or relative path according to whether the TO pathname
is abslute or relative. Previously, the result was take from
the SOURCE pathname, except if TO were absolute, in which case
the result was absolute.
Experimental support for static arrays has been added. These
are allocated in foreign (malloc) space and are never moved by GC.
They are, however, properly garbage collected. To create an array,
use MAKE-ARRAY with :ALLOCATION :MALLOC. Only arrays of character; 8,
16, and 32-bit integers (signed or unsigned); single and double
floats; and complex single and double floats are supported.
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