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Thu Sep 25 03:32:27 2003 UTC (10 years, 6 months ago) by toy
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1 emarsden 1.72 ========================== C M U C L 19 a =============================
2 gerd 1.1
3     [--- WORK IN PROGRESS --- DO NOT DISTRIBUTE ---]
4    
5     The CMUCL project is pleased to announce the release of CMUCL 19a.
6     This is a major release which contains numerous enhancements and
7     bugfixes from the 18e release.
8    
9     CMUCL is a free, high performance implementation of the Common Lisp
10     programming language which runs on most major Unix platforms. It
11     mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
12     sophisticated native code compiler; a powerful foreign function
13     interface; an implementation of CLOS, the Common Lisp Object System,
14     which includes multimethods and a metaobject protocol; a source-level
15     debugger and code profiler; and an Emacs-like editor implemented in
16     Common Lisp. CMUCL is maintained by a team of volunteers collaborating
17     over the Internet, and is mostly in the public domain.
18    
19     New in this release:
20    
21     * Feature enhancements:
22 toy 1.50 - Stack overflow checking added for FreeBSD/x86, Linux/x86 and
23     Solaris. Code that makes the control stack overflow (for
24     example due to unbounded recursion) will lead to a
25     STORAGE-ERROR being signaled, instead of making CMUCL crash.
26 gerd 1.1 - LISP:FIND-CLASS and LISP:CLASS-OF now return CLOS classes. The
27 emarsden 1.21 symbols LISP:STANDARD-CLASS, LISP:BUILT-IN-CLASS, and
28 gerd 1.3 LISP:STRUCTURE-CLASS name CLOS classes. It is no longer
29 gerd 1.1 necessary to SHADOWING-IMPORT these from PCL when doing MOP
30     programming, and it fixes some non-compliances as well.
31 emarsden 1.29 - Package locks: a package whose EXT:PACKAGE-LOCK is enabled
32     non-NIL is protected against changes in its structure (list of
33     exported symbols, use-list etc). Symbols in a package whose
34     EXT:PACKAGE-DEFINITION-LOCK is enabled are protected against
35     redefinition.
36 gerd 1.2 - Weak hash tables have been added for x86 systems.
37 gerd 1.4 - Local functions are now named (FLET <name> ...) or
38     (LABELS <name> ...).
39 gerd 1.80 - Compiler checking control string and number of args to FORMAT,
40     ERROR and WARN.
41 gerd 1.27 - TRACE automatically using encapsulation when function-end
42     breakpoints cannot be used.
43 gerd 1.28 - INSPECT working on CLOS instances.
44 toy 1.50 - Callbacks from foreign code to Lisp. Implemented for x86 and
45     sparc.
46 gerd 1.31 - Functions like GETHASH that are used in the implementation of
47     TRACE can now be traced. See also
48     DEBUG:*TRACE-ENCAPSULATE-PACKAGE-NAMES*.
49 gerd 1.39 - New facility for encapsulating functions, FWRAPPERS;
50     see also the CMUCL User Manual.
51     - TRACE and PROFILE have been reimplemented using fwrappers,
52     with the effect of tracing and profiling now working more
53     nicely together.
54     - When a profiled function is redefined, it is re-profiled.
55 toy 1.50 - A basic implementation of simple-streams added. Some
56     functionality may be missing.
57 gerd 1.51 - UNIX:UNIX-LSEEK working with files > 2G on BSDs.
58 gerd 1.52 - Type declarations on local bindings of special variables no
59     longer being ignored.
60 gerd 1.61 - DISASSEMBLE disassembling closure/funcallable instance
61     functions.
62     - (SETF EXT:WEAK-POINTER-VALUE) has been added.
63 gerd 1.63 - CMUCL no longer entering an infinite loop when dumping
64     circular constant lists to fasl files.
65 gerd 1.68 - COMPILE-FILE-PATHNAME's BYTE-COMPILE keyword arg defaulting
66     to *BYTE-COMPILE-DEFAULT* like COMPILE-FILE.
67 toy 1.78 - Added VOPs for CHAR=, CHAR<, and CHAR> when the second arg is a
68     constant character.
69     - Added missing VOPs for Sparc for array refs with a constant
70     index.
71     - Lisp binary will also look at the PATH envvar to find out it's
72     own location which is used to find other needed files.
73 gerd 1.88 - Byte-compiled code being executed ca. 1/3 faster.
74 toy 1.81
75 gerd 1.1 * Numerous ANSI compliance fixes:
76 gerd 1.5 - Many bugs in CMUCL's type system detected by Paul Dietz'
77     ANSI test suite have been fixed.
78     - Non-keyword keyword names in lambda lists are now accepted.
79 gerd 1.6 - Condition slot initialization fixed for the case that two
80     or more slots have the same :INITARG.
81 gerd 1.7 - Initforms are now evaluated once only during condition slot
82     initialization.
83     - USE-VALUE, STORE-VALUE, CONTINUE behavior corrected in presence
84     of multiple restarts having the same name.
85     - RESTART-CASE's interaction with local macros fixed.
86     - Interaction of COMPUTE-RESTARTS and RESTART-CASE fixed in
87     presence of multiple restarts having the same name.
88 gerd 1.8 - Condition slot readers/writers are generic functions.
89 gerd 1.9 - &WHOLE, &REST, &BODY in macro lambda lists can be followed
90     by destructuring patterns. The previous behavior of &BODY
91     when followed by (<body> <declarations> <doc>) is available
92     through the new lambda-list keyword EXT:&PARSE-BODY.
93 gerd 1.10 - ELT now signals an error in safe code when used on lists
94     with an out-of-bounds index.
95     - Accessing arrays in compiled code with out-of-bounds indices
96     now signals a TYPE-ERROR.
97 gerd 1.11 - DECLARE no longer being a special operator.
98 gerd 1.16 - DEFINE-CONDITION accepts slot option :DOCUMENTATION.
99 gerd 1.18 - Behavior of (... &KEY &ALLOW-OTHER-KEYS) fixed for
100     DESTRUCTURING-BIND and macros.
101 gerd 1.19 - Stricter checking of keyword argument list in CLOS methods.
102 gerd 1.20 - &ENVIRONMENT variable bound bound before other vars, regardless
103     of where it appears in a lambda-list.
104 gerd 1.22 - VALUES types no longer accepting &KEY or &ALLOW-OTHER-KEYS.
105     - THE conforming to ANSI.
106 gerd 1.24 - SLOT-EXISTS-P can be used with conditions.
107 gerd 1.32 - REMOVE-METHOD always returning the generic function passed to it.
108     - Standard methods for STANDARD-OBJECT and STRUCTURE-OBJECT
109     defined on MAKE-LOAD-FORM.
110     - Compliant MAKE-LOAD-FORM-SAVING-SLOTS.
111 gerd 1.37 - DEFSTRUCT recording slot-names as specified by users.
112 gerd 1.40 - Generic function call keyword argument checking according to
113     ANSI 7.6.5.
114 gerd 1.45 - CALL-NEXT-METHOD without arguments being called with original
115     arguments when method parameters are changed with SETQ.
116     - When CALL-NEXT-METHOD is called with arguments, an error is
117     signaled in safe code when the set of methods applicable to
118     CALL-NEXT-METHOD's arguments is different from the set of
119     methods applicable to the original method arguments.
120 gerd 1.46 - FIND-METHOD signaling an error when called with specializers
121     not corresponding to the number of required arguments of the
122     supplied generic function.
123 gerd 1.48 - TYPE-OF returning KEYWORD for keywords, STANDARD-CHAR for
124     standard characters, BOOLEAN for T, (INTEGER <N> <N>) for
125     integers N, non-list types for functions, and CLOS classes for
126     instances whose class doesn't have a proper name.
127 gerd 1.49 - Class precedence list of NULL not having SYMBOL before LIST,
128     precedence list of STANDARD-METHOD not having METHOD before
129     STANDARD-OBJECT.
130 gerd 1.55 - ADD-METHOD returning its first argument, the generic function.
131 gerd 1.54 - DEFCLASS redefining a class with the given name only if the
132     name is the proper name of an existing class.
133 gerd 1.57 - KEYWORD package no longer having nickname "".
134 gerd 1.60 - COMMON-LISP-USER package no longer having nickname USER.
135     - COMMON-LISP package no longer having nickname LISP; LISP
136     and COMMON-LISP are now separate packages.
137 gerd 1.58 - SLOT-VALUE, (SETF SLOT-VALUE), SLOT-BOUNDP, SLOT-MAKUNBOUND
138     returning values specified by the standard when SLOT-UNBOUND
139     or SLOT-MISSING are called and return.
140 gerd 1.65 - NTH and NTHCDR accepting bignums as first argument.
141 gerd 1.66 - First arg of CERROR may be a function.
142 gerd 1.67 - Lambda-lists of the form (X . Y) in DESTRUCTURING-BIND and macros
143     are now equivalent to (X &REST Y).
144 gerd 1.69 - LAST, BUTLAST, NBUTLAST accepting bignum counts.
145 gerd 1.71 - WITH-OUTPUT-TO-STRING accepting :ELEMENT-TYPE.
146 gerd 1.75 - FIXNUM no longer naming a function.
147 toy 1.78 - MAKE-STRING-OUTPUT-STREAM accepts :ELEMENT-TYPE.
148 gerd 1.89 - Numerous LOOP fixes.
149 gerd 1.92 - On FreeBSD, CLtS-required floating-point conditions are signaled.
150 gerd 1.98 - PARSE-INTEGER skipping over whitespace after a number.
151 gerd 1.1
152     * Numerous bugfixes:
153 gerd 1.12 - NSET-EXCLUSIVE-OR returns the same results as SET-EXCLUSIVE-OR
154     wrt to duplicate elements.
155 gerd 1.11 - Forms like (MULTIPLE-VALUE-BIND 'LIST) no longer trapping
156     an internal compiler error when compiled.
157 gerd 1.16 - PARSE-INTEGER signaling PARSE-ERROR.
158     - Compiler eliminating some type checks in safe code.
159 gerd 1.41 - Byte-compiler and -interpreter not handling C:&MORE.
160     - Some TYPE-ERRORs being signaled with unbound slots, which
161     made them undisplayable.
162 gerd 1.62 - Structure predicates no longer signaling an error when applied
163     to obsolete instances.
164 gerd 1.64 - A DEFTRANSFORM for array bounds checking had an off-by-1 error.
165 toy 1.78 - Compiler was not properly deriving the type of FTRUNCATE in all
166     cases.
167     - Fixed error wherein certain uses of 2 arg ATAN caused a
168     compiler error on x86.
169 gerd 1.84 - Compiler wrongly signaling a type error in VOLATILE-INFO-LOOKUP or
170     COMPACT-INFO-LOOKUP for hash values equal to MOST-POSITIVE-FIXNUM.
171 gerd 1.85 - FFLOOR and FCEILING return types sometimes being inferred as
172     being the nil type.
173 gerd 1.90 - PARSE-TIME accepting GMT offsets with a leading plus sign.
174 gerd 1.91 - UNIX-MMAP not accepting a null fd, preventing anonymous
175     mappings.
176     - SIGPROF having the wrong value on GNU/Linux.
177 gerd 1.93 - Wrong byte-code being generated for (APPLY #'+ <X> <Y>) and
178     similar cases.
179 gerd 1.95 - GCD sometimes returning a negative value.
180 gerd 1.96 - LCM sometimes returning a negative value, or signaling division-by-zero.
181 gerd 1.97 - FLOAT in sometimes returning a float of the wrong type.
182 gerd 1.1
183     * Other changes:
184 emarsden 1.72 - CREATE-REQUEST-SERVER has an additional :reuse-address keyword
185     argument.
186 emarsden 1.21 - Removed obsolete alias from MAKE-VECTOR to MAKE-ARRAY
187 emarsden 1.44 - the signature of *COMPILER-NOTIFICATION-FUNCTION* has changed;
188     it now has an extra argument that describes the nature of the
189     error or warning.
190 toy 1.78 - File versioning occurs when the version component is :NEWEST,
191 toy 1.56 and Emacs style file versions are created: foo.bar.~N~, where
192     the larger N is newer. foo.bar is the newest version.
193     - Converting namestrings to pathnames now get a version component
194     of NIL instead of :NEWEST.
195 toy 1.78 - *DEFAULT-PATHNAME-DEFAULTS* has a version component of
196     :UNSPECIFIC instead of :NEWEST so versioning is disabled by
197 toy 1.56 default to preserve current behavior. Set the version to
198 toy 1.78 :NEWEST to create versions.
199 gerd 1.73 - LDB backtrace on x86.
200 gerd 1.82 - DYNAMIC-EXTENT support on x86 and sparc. Stack-allocation can
201     be controlled by the setting of
202     EXT:*TRUST-DYNAMIC-EXTENT-DECLARATIONS*. See also the CMU User
203     Manual. Be warned that all bets are off if a stack-allocated
204     object or parts of it escape; CMUCL might crash or format your
205     hard disk.
206     - Generational GC (gencgc) available for Sparc/Solaris on an
207 toy 1.81 experimental basis. Despite the name and feature, it is not
208     conservative.
209 toy 1.94 - Search in /usr/lib/cmucl for the lisp core file as well, to
210     support x86/Linux
211 toy 1.99 - The trap for floating-point underflow is turned off by default
212     for all platforms now.
213 gerd 1.1
214     * Numerous improvements to the PCL implementation of CLOS:
215     - Gerd's PCL has been added, which fixes numerous bugs and ANSI/
216     AMOP non-compliances, and adds various new optimizations (also
217     see the CMU User Manual).
218 gerd 1.2 - PCL's class hierarchy has been changed to conform to AMOP, for
219     instance, GENERIC-FUNCTION is now a subclass of
220     STANDARD-OBJECT.
221 gerd 1.4 - ENSURE-CLASS-USING-CLASS's argument list has been changed
222     to conform to AMOP.
223 gerd 1.5 - COMPUTE-EFFECTIVE-SLOT-DEFINITION now takes a slot name as
224     argument, for AMOP compliance.
225 gerd 1.9 - SUBTYPEP works in presence of forward-referenced classes.
226 gerd 1.13 - Accessing slots of specialized parameters in (SETF
227     SLOT-VALUE-USING-CLASS) methods works.
228 gerd 1.14 - DIRECT-SLOT-DEFINITION-CLASS and EFFECTIVE-SLOT-DEFINITION-CLASS
229     AMOP compliant.
230 gerd 1.15 - ALLOCATE-INSTANCE working with structures defined with DEFSTRUCT.
231 gerd 1.23 - With (DEFGENERIC FOO (&REST X &KEY)) (DEFMETHOD FOO (&REST X) X),
232     (FOO 1) now signals an error.
233 gerd 1.33 - Methods with &OPTIONAL arguments detecting too many args.
234 gerd 1.35 - DEFMETHOD and DEFGENERIC detecting doubled lambda variables.
235 gerd 1.34 - DEFGENERIC :ARGUMENT-PRECEDENCE-ORDER option checking.
236     - SLOT-VALUE, (SETF SLOT-VALUE), SLOT-BOUNDP working with conditions.
237 gerd 1.36 - (SETF SLOT-VALUE) working on read-only structure slots like
238     in other implementations.
239 gerd 1.38 - The declaration identifiers SLOTS, AUTO-COMPILE,
240     NOT-AUTO-COMPILE have been moved from PCL to EXT.
241 gerd 1.42 - Support for inlineing methods in effective methods; see the
242     CMU User Manual.
243 gerd 1.47 - Wrong results could be returned from generic functions when
244     all methods returned constant values, and some methods were
245     qualified, or the generic function didn't use the standard
246     method combination.
247 gerd 1.59 - For standard method combination and method combinations defined
248     with the short form of DEFINE-METHOD-COMBINATION: If there are
249     no applicable primary methods when a generic function is
250     called, the generic function PCL:NO-PRIMARY-METHOD is called.
251     The default method of this generic function signals a
252     continuable error of type PCL:NO-PRIMARY-METHOD-ERROR.
253 gerd 1.74 - Effective methods are no longer precomputed at method load
254 gerd 1.82 time, if the generic function has more than
255     PCL:*MAX-EMF-PRECOMPUTATION-METHODS* methods (default 100).
256     - The loading of methods with invalid qualifiers no longer
257     signals an error, for standard's conformance. Instead, a
258     warning is printed at method load time. An error is
259     signaled if the generic function is called with arguments such
260     that the method is used.
261 gerd 1.83 - Redefining a generic function with a different method
262     combination now recomputes effective methods.
263 gerd 1.1
264     * Improvements to Hemlock, the Emacs-like editor:
265    
266     * Changes to rebuilding procedure:
267 toy 1.100 - When rebuilding CMUCL, *features* do not need to be set by
268     hand. As files are loaded, the appropriate *features* are set
269     so that the resulting build has the same set of *features*.
270     There should also be fewer warnings about internals.h changing,
271     since that now just contains things in sys:*runtime-features*.
272     Use sys:register-lisp-feature and
273     sys:register-lisp-runtime-feature to set *features* and
274     sys:*runtime-features*, respectively.
275 gerd 1.1
276     * Deprecated features:
277 gerd 1.39 - EXT:ENCAPSULATE and associated functions; use fwrappers instead.
278 gerd 1.1
279     This release is not binary compatible with code compiled using CMUCL
280     18e; you will need to recompile FASL files.
281    
282     See <URL:http://www.cons.org/cmucl/> for download information,
283     guidelines on reporting bugs, and mailing list details.
284    
285    
286     We hope you enjoy using this release of CMUCL!
287    

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