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1 rtoy 1.1 ========================== C M U C L 19 e =============================
5     The CMUCL project is pleased to announce the release of CMUCL 19e.
6     This is a major release which contains numerous enhancements and
7     bugfixes from the 19d release.
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.
19     New in this release:
21 rtoy 1.13 * Supported system:
22     - Support for Mac OS X/Intel has been added.
23 rtoy 1.1
24     * Feature enhancements:
25 rtoy 1.8 - Support for dynamic-extent added for ppc. However, it suffers
26     from the same problems with dynamic-extent as other platforms,
27     so it is disabled by default. Tests indicate that it does work
28     in simple situations.
29     - PARSE-TIME recognizes the format produced by C asctime/ctime.
30     (This change may break some other less commonly used patterns.)
31 rtoy 1.10 - PARSE-TIME recognizes and discards any microseconds.
32     - PARSE-TIME checks that a specified day of the week matches the
33     actual day of the week given in the date. An error is signaled
34     if they are inconsistent.
35 fgilham 1.12 - New option to SAVE-LISP allows creating executable Lisp images
36     that do not require a runtime loader.
37     Syntax: (save-lisp "filename" :executable t)
38     Currently supported on FreeBSD and Linux; work on a Solaris
39     version is underway.
40     Limitations: depends on files in "library:" to dump new
41     executable images.
42 rtoy 1.15 - CMUCL's version of CLX has been replaced with telent CLX.
43 rtoy 1.1
44     * ANSI compliance fixes:
45 rtoy 1.3 - BOA constructors with &AUX variables are handled better now.
46 rtoy 1.6 - SHADOW accepts characters now.
47 rtoy 1.9 - Default initargs are now passed correctly to initialize-instance
48     and shared-initialize.
49 rtoy 1.1
50     * Bugfixes:
51 rtoy 1.2 - Floating-point traps are now handled on ppc. Previously, no
52     traps were signalled and SET-FLOATING-POINT-MODES did nothing.
53 rtoy 1.3 - FILE-POSITION no longer returns negative values for mapped
54     file-simple-stream's.
55 rtoy 1.9 - Potential Version numbers that start with a leading 0 are no
56     longer treated as version numbers. Hence, "foo.~1~" has name
57     "foo", type nil, and version 1, but "foo.~01~" has type "~01~"
58     and version :NEWEST.
59 rtoy 1.5 - A bug in type derivation for EXPT has been fixed. (expt x y)
60     for x of type (double-float (0d0) 1d0) and y of type
61     (double-float (0d0)) now returns (or (member 0d0) (double-float
62     (0d0) 1d0)) instead of (double-float 0d0 1d0), i.e., -0d0 is not
63     in the range.
64 rtoy 1.6 - On sparc, the decoding of a trapping FP instruction is correct
65     now. Previously the wrong instruction was decoded, which
66     produced the wrong operation and operands in the arithmetic
67     error handler.
68 rtoy 1.8 - Fix issue with UNIX:UNIX-MMAP handling of "large" addresses that
69     appeared to be negative numbers.
70 rtoy 1.9 - DOUBLE-DOUBLE-FLOAT fixes:
71     o Converting negative rationals to double-double-float's doesn't
72     produce wrong answers anymore.
73     o Conversion of bignums to double-double-floats preserves more
74     bits of the bignum now. This allows for read/print consistency
75     for this particular case. (The general case is still broken.)
76     o (float <negative bignum> 1w0) no longer returns a positive
77     result.
78     o Some issues with creation of DOUBLE-DOUBLE-FLOAT and (COMPLEX
79     DOUBLE-DOUBLE-FLOAT) have been fixed on sparc, ppc, and x86.
80     These seem to work, except there appears to be some bugs on x86
81     when compiling at speed 3 and safety 0.
82     o (INTEGER-DECODE-FLOAT <double-double-float>) was sometimes
83     returning the wrong integer value because the two components had
84     the wrong sign.
85     o Some issues with debugger printing out DOUBLE-DOUBLE-FLOATs and
86     (COMPLEX DOUBLE-DOUBLE-FLOAT)'s have been fixed.
87 rtoy 1.10 o CLOS now recognizes that (COMPLEX DOUBLE-DOUBLE-FLOAT) is a
88     valid built-in class instead of a random object.
89     o Branch cuts for ASIN and ATANH for double-double-float's
90     should match the branches for double-float's.
91     o ATAN2 should correctly handle signed double-double-float
92     zeroes.
93     o FASL files containing -0w0 are now converted to -0w0 instead
94     of 0w0.
95     o SIN and TAN return -0w0 when the argument is -0w0.
96     Previously, they returned 0w0.
97 rtoy 1.11 o Signed zeroes are handled better for addition, subtraction,
98     and multiplication. That is, the correct signed zero is
99     returned now.
100     o Overflow in addition, multiplication, and division returns
101     infinity if traps are disabled.
102 rtoy 1.14 o EQL supports DOUBLE-DOUBLE-FLOAT's now.
103 rtoy 1.10 - The assembler for ppc had some arguments for some instructions
104     in the wrong order, producing the wrong effect.
105 rtoy 1.11 - When making displaced arrays, the element types are checked to
106     see if they are type equivalent. If not, an error is signaled.
107     - The reader for #= and ## has been enhanced to be much faster for
108     cases with a large number of shared objects. However, it is also
109     somewhat slower for simple cases.
110 rtoy 1.16 - #p"..." now has a namestring and is treated as a pathname with
111     name ".." and type "".
112     - #p"..a" erroneously had directory (:relative). This has been
113     fixed so that directory = nil, name = ".", and type = "a".
115 rtoy 1.1 * Trac Tickets:
116 rtoy 1.4 - #8 fixed so logs of bignums and ratios that won't fit into a
117     float can be computed, instead of signalling an error.
118 rtoy 1.9 - #9 fixed. An error is generated if the number of days doesn't
119     match the number of days in the given month.
120 rtoy 1.10 - #10 fixed. ROUND should now return correct answers for floats
121     bigger than most-positive-fixnum.
122 rtoy 1.14 - #11 fixed. EQL handles double-double-float's correctly now.
123 rtoy 1.1
124     * Other changes:
125 rtoy 1.15 - UNIX:UNIX-ERRNO accesses the thread errno value instead of the
126     global errno value.
127 rtoy 1.1
128     * Improvements to the PCL implementation of CLOS:
129 rtoy 1.2 - Forward-referenced classes are allowed.
130 rtoy 1.1
131     * Changes to rebuilding procedure:
133     This release is not binary compatible with code compiled using CMUCL
134     19d; you will need to recompile FASL files.
136     See <URL:http://www.cons.org/cmucl/> for download information,
137     guidelines on reporting bugs, and mailing list details.
140     We hope you enjoy using this release of CMUCL!

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