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1 rtoy 1.2 ========================== C M U C L 19 b =============================
2 rtoy 1.1
3     [--- WORK IN PROGRESS --- DO NOT DISTRIBUTE ---]
4    
5 rtoy 1.2 The CMUCL project is pleased to announce the release of CMUCL 19b.
6 rtoy 1.1 This is a major release which contains numerous enhancements and
7 rtoy 1.2 bugfixes from the 19a release.
8 rtoy 1.1
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 rtoy 1.3 - Added a much faster and much less consy bignum printer and a
23     faster bignum reader.
24     - Extended REQUIRE to support *MODULE-PROVIDER-FUNCTIONS* from
25     SBCL.
26 rtoy 1.6 - NetBSD supported.
27 rtoy 1.2 - SIMPLE-STREAM fixes:
28     o READ-SEQUENCE and WRITE-SEQUENCE for
29     signed-byte/unsigned-byte 8 streams.
30     o Memory-mapped file streams.
31 rtoy 1.4 - Large file support for Solaris, so CMUCL can handle files
32     larger than 2GB.
33 rtoy 1.6 - Support for Mac OS X.
34     - A much faster GCD implementation.
35     - A faster Karatsuba multiplier when the number of words of the
36     bignums is not a power of 2. (Break-even is still around 1500
37     bits, though.)
38     - New command-line switch -debug-lisp-search to show how lisp is
39     searching for its core file.
40 rtoy 1.7 - DEBUG-RETURN implemented which allows you to return a value
41     from function. Only enabled with DEBUG 3.
42     - Lazy sxhash on symbols implemented for ppc.
43 rtoy 1.9 - Pretty-printer for LOOP.
44     - Added some more pprinters for various forms.
45 rtoy 1.10 - Callbacks supported on Mac OS X.
46 rtoy 1.11 - Loop analysis code added to the compiler. It's incorporated
47 rtoy 1.13 into the build and can be enabled by setting *loop-analyze* to
48     T, but the compiler doesn't use the loop information for
49     anything yet.
50 rtoy 1.12 - Errors from socket functions signal a SOCKET-ERROR instead of
51     ERROR.
52     - Efficiency notes are no longer printed if inhibit-warnings >=
53 rtoy 1.14 2.5.
54     - Simple support for datagram networking added: INET-RECVFROM,
55     INET-SENDTO, INET-SHUTDOWN.
56 rtoy 1.16 - Linkage table support for PPC and Darwin.
57 rtoy 1.17 - A socket reset signals a SOCKET-ERROR condition instead of a
58     general ERROR condition.
59 rtoy 1.18 - :LINKAGE-TABLE feature is now supported on PPC.
60 rtoy 1.21 - MAKE-INDENTING-STREAM and INDENTING-STREAM-P are exported from
61     the EXTENSIONS package instead of being internal.
62     - TRACE will work now for the known-return convention, which
63     used to require encapsulation so that only the first call was
64     traced. Useful for tracing recursive functions.
65     - Bivalent streams are supported. Thus, streams with
66     element-type (unsigned-byte 8) can be used for character
67     input/output as well as binary input/output. Supply the
68     option :CLASS 'EXT:BINARY-TEXT-STREAM for OPEN to get bivalen
69     streams. EXT:READ-VECTOR and EXT:WRITE-VECTOR also
70     implemented. This is somewhat experimental right now, and may
71     change slightly in a future version.
72 rtoy 1.22 - Loading fasls compiled for a different version of CMUCL will
73     now signal an EXT:INVALID-FASL error instead a generic error.
74 rtoy 1.1
75     * Numerous ANSI compliance fixes:
76 rtoy 1.3 - FILE-AUTHOR should signal errors appropriately.
77 rtoy 1.1 - CMUCL was computing the wrong value for some special functions
78     when the argument was on the branch cut for the function.
79     - MULTIPLE-VALUE-BIND accepts &REST and friends in the var list.
80     - When constructing logical pathnames, all components will be
81     automatically upcased. Needed for print/read consistency, and
82     fixes an issue with ASDF and logical pathnames.
83 rtoy 1.5 - Numerous fixes to the float printer, including a new float
84     printer.
85     - Justification (~< ~>) works better.
86     - ~V with the value of NIL in format strings is treated to mean
87     as if it weren't given at all, as specified by ANSI CL.
88     - Characters print consistently with ~:C and ~S.
89 rtoy 1.7 - Numerous bug fixes for pretty-printing and format strings.
90     - Pathnames are now printed with #P instead of #p.
91     - The types COMPLEX and (COMPLEX REAL) are the same now.
92     - UPGRADED-COMPLEX-PART-TYPE returns RATIONAL for integer types
93     now. (CMUCL doesn't really have a (COMPLEX INTEGER) type).
94     - When a pathname can't be printed readably, signal a
95     PRINT-NOT-READABLE condition
96 rtoy 1.8 - Printing arrays readably was sometimes wrong.
97 rtoy 1.9 - FOR-AS-ON-LIST works with dotted lists.
98     - DEFSTRUCT predicates for list structures don't produce errors
99     anymore on dotted or short lists.
100     - UNBOUND-SLOT condition no longer takes the :slot keyword. It
101     uses the ANSI-specified :name keyword. This is not backward
102     compatible!
103     - MAKE-SYMBOL takes STRING's, not just SIMPLE-STRING's.
104     - PPRINT-POP did not return NIL when the list arg to
105     PPRINT-LOGICAL-BLOCK was NIL.
106     - Signal appropriate error conditions instead of a plain error
107     condition in many situations.
108     - TYPECASE was treating the type T as an otherwise clause even
109 rtoy 1.11 though it was not the last clause. It should be just a
110 rtoy 1.9 regular clause.
111     - ASIN, ACOS, ACOSH, and ATANH were returning the wrong values
112     when the arg was a real number on the branch cut.
113     - Missed some places where loop variables were duplicated, which
114     should signal a program-error.
115 rtoy 1.11 - LOOP INITIALLY clauses occur after variable initialization for
116     FOR, WITH, and AS clauses, as required by ANSI CL.
117 rtoy 1.12 - Format bugs in ~{ and ~@[X~], as noted by ansi-tests, have
118     been fixed.
119 rtoy 1.13 - Evaluation order of REMF, INCF, and DECF.
120     - When *read-suppress* is T, READ, READ-PRESERVING-WHITESPACE,
121     READ-DELIMITED-LIST, and READ-FROM-STRING now return NIL, as
122     specified by ANSI CL. (Previously, CMUCL would return a list
123     of NILs.)
124 rtoy 1.17 - Pathname components of type :UNSPECIFIC are not printed in
125     namestrings anymore.
126 rtoy 1.18 - Dumping of symbols in fasls work according to ANSI now.
127 rtoy 1.23 - READ-FROM-STRING was sometimes not returning the correct
128     second value when the string was a displaced string.
129     - The invalid trait for constituent characters is handled
130     better.
131     - (formatter "~V[...~]" now returns the correct result for
132     second value.
133 rtoy 1.1
134     * Numerous bugfixes:
135 rtoy 1.3 - FFLOOR and friends preserve the sign of the arg, so -0.0 is
136     returned for negative args.
137     - EXPT sometimes returne NaN instead of 1 when the power was 0.
138 rtoy 1.4 - Weak pointers don't have O(n^2) GC behavior anymore.
139 rtoy 1.6 - X11 authorization changes to solve problems seen with servers
140     that don't listen to TCP connection requests.
141 rtoy 1.7 - unix-read fix
142     - The compiler would give an error on deriving the result type
143     of RANDOM when the arg to RANDOM was a union type.
144     - "~*~" was not being parsed to mean a wildcard version.
145     - UNIX-GETPWUID implemented for Darwin. Needed for FILE-AUTHOR.
146     - The compiler no longer gives errors when deriving the result type of
147     coerce when converting a integer to a float that would not fit
148     in a float.
149     - Fix bug in reading from streams with element-type SIGNED-BYTE
150 rtoy 1.9 for sizes greater than 32: Positive numbers were incorrectly
151 rtoy 1.7 being returned as negative.
152 rtoy 1.8 - REMOVE-DUPLICATES was not honoring the :START option.
153 rtoy 1.9 - PPRINT-LOGICAL-BLOCK sometimes didn't close the block properly
154     because PPRINT-EXIT-IF-LIST-EXHAUSTED caused an early exit.
155     - Macro expansion was not looking in the local environment
156     properly for local definitions.
157     - Circular Weak pointers can now be printed when *print-circle*
158     is T.
159     - "foo.lisp.*" is interpreted to have version :wild, just like
160     "foo.lisp.~*~".
161     - DIRECTORY will report all versions of a file if the pathname
162     has version :wild.
163     - Fixed bug with CLX on MacOS X where the WM-SIZE-HINTS were
164     larger than CLX expected. Replaced card16 with card32.
165 rtoy 1.10 - Callbacks on sparc that returned double-floats were sometimes
166     causing a sigbus error.
167 rtoy 1.11 - Type specifiers like (float low high) where low and high were
168     outside the range of single-float numbers no longer cause
169     compiler errors.
170     - Fix source-form reporting in the disassembler.
171 rtoy 1.12 - Arrays in fasl files had non-NIL fill-pointer. Make them NIL.
172     - FILE-POSITION was incorrectly set for simple-streams after a
173     READ-VECTOR.
174     - Printing 1d23 no longer causes an error.
175     - Work around the problem of (concatenate 'fixnum '(1)) causing
176     deletion of all following code.
177     - A directory with a component of :WILD was not correctly
178     handled.
179     - CREATE-INET-LISTENER was missing a call to htonl.
180 rtoy 1.13 - (coerce #c(1 2) '(complex float)) works now.
181 rtoy 1.14 - Type derivation for logior and logxor was broken.
182     - Fixed bug where (setf (aref f 0) (aref d 0)) doesn't produce a
183     warning and causes code including the function return to be
184     deleted, where f is a single-float array and d is a
185     double-float array.
186     - COUNT for bit arrays was sometimes failing to include the
187     count from the last 32-bits of the array.
188 rtoy 1.15 - The default heap size was causing CMUCL to fail on Solaris
189     10. Change the default so this doesn't happen. (The real
190     cause is unknown.)
191 rtoy 1.18 - In some cases, the compiler was spending large amounts of time
192     deriving union of a bunch of disjoint integer intervals. If
193     the union is long enough, we give up and just return the
194     smallest new interval that contains all of the disjoint
195     intervals. (This needs a better fix.)
196 rtoy 1.19 - The :WHEREIN option to TRACE handles methods now.
197 rtoy 1.21 - The maximum dynamic space size was wrong on Linux.
198     - Type inferencing for OPEN was broken when :IF-DOES-NOT-EXIST
199     was given and was not a compile-time constant.
200     - ~G output always had a zero for the last digit when
201     exponential form was used. Fix this so the last digit has the
202     correct digit.
203 rtoy 1.14
204 rtoy 1.1 * Other changes:
205 rtoy 1.11 - Infinite loops in map and friends caused by specifying
206     sequence types that are too hairy for CMUCL should no longer
207     occur. But CMUCL will now signal an error, which may not be
208     compliant either.
209 rtoy 1.12 - Compiler is a little smarter in deriving the result type of
210     MAP.
211 rtoy 1.13 - MAKE-PATHNAME will accept a :HOST arg of NIL, and will use NIL
212     as the host slot instead of filling in the host slot from the
213     defaults.
214 rtoy 1.18 - CMUCL/sparc should now run on Solaris 10. This port no longer
215     uses the reserved register %g7 anymore. The heap size is now
216     rounded to a multiple of 8 MB. Without this, CMUCL eventually
217     gets a GC error on Solaris 10 when using gencgc. There appear
218     to be no problems with Cheney GC on Solaris 10.
219 rtoy 1.20 - The config script uses REQUIRE instead of LOAD to load up
220     CMUCL's system libraries so there are no package-lock errors.
221     - REQUIRE no longer disables package-locks when loading
222     requested file. But package-locks are disabled for CMUCL's
223     own system libraries like gray-streams, clx, etc.
224 rtoy 1.13
225 rtoy 1.5 * Improvements to the PCL implementation of CLOS:
226 rtoy 1.14 - AMOP-style custom slot allocation supported.
227 rtoy 1.1
228     * Improvements to Hemlock, the Emacs-like editor:
229    
230     * Changes to rebuilding procedure:
231    
232     * Deprecated features:
233    
234     This release is not binary compatible with code compiled using CMUCL
235     19a; you will need to recompile FASL files.
236    
237     See <URL:http://www.cons.org/cmucl/> for download information,
238     guidelines on reporting bugs, and mailing list details.
239    
240    
241     We hope you enjoy using this release of CMUCL!
242    

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