Tags give the ability to mark specific points in history as being important
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sbcl_0_8_14
40256293 · ·changes in sbcl-0.8.14 relative to sbcl-0.8.13: * incompatible change: the internal functions SB-KERNEL:32BIT-LOGICAL-FOO, intended for providing efficient logical operations on (UNSIGNED-BYTE 32) values, have been renamed to SB-KERNEL:WORD-LOGICAL-FOO. Modular arithmetic should be used instead of the old functions. * new feature: on platforms where "dladdr" is available foreign function names now appear in backtraces. (based on Helmut Eller's work for CMUCL) * documentation: documentation for SB-BSD-SOCKETS, SB-GRAY, SB-SIMPLE-STREAMS, and SB-PROFILE have been integrated into the user manual. * documentation: ASDF manual is now distributed with SBCL. * bug fix: SBCL can now load its contributed modules with REQUIRE even if the system-provided entries have been removed from ASDF:*CENTRAL-REGISTRY*. Infinite recursion in REQUIRE is also detected. * bug fix: backtraces involving undefined functions or assembly routines are more informative. (thanks to Brian Downing) * bug fix: mutually referent alien structures now work correctly. (reported by Rick Taube) * bug fix: structures defined by WITH-ALIEN can be referred to within other definitions in the same WITH-ALIEN. * bug fix: division operators (MOD, TRUNCATE and the like) with constant zero divisors and integer dividends no longer generate left shifts. * bug fix: provide default methods for INPUT-STREAM-P and OUTPUT-STREAM-P specialized on SB-GRAY:FUNDAMENTAL-STREAM. * bug fix: improve the detection and resolution of MOP metacycles (where effective method computation depends on the generic function having its effective method computed). (reported by Bruno Haible) * bug fix: pass the right initargs to :BEFORE or :AFTER methods on SHARED-INITIALIZE or INITIALIZE-INSTANCE in optimized MAKE-INSTANCE constructors. (reported by Axel Schairer for cmucl) * bug fix: pathnames with relative directory components can be represented relative to default pathnames. * optimization: in taking the GCD of bignums, reduce the two bignums to approximately the same size (using Euclid's algorithm) before applying the more sophisticated binary GCD. (thanks to Juho Snellman) * optimization: COUNT on bitvectors now operates word-at-a-time. * optimization: ASH with a positive, but not necessarily constant, (leftwards) shift, when in a modular context, is compiled to a hardware shift. * fixed some bugs revealed by Paul Dietz' test suite: ** FORMAT variable parameters ("~V<char>") are defaulted properly if the corresponding argument is NIL. ** FORMAT directives accepting a minpad parameter treat negative values as 0. ** literal commas as character parameters to FORMAT directives are parsed correctly. ** literal spaces directly after ~<Newline> directives within a format-logical-block (~:< ~@:>) do not induce :FILL-style conditional newlines. ** PRINT-UNREADABLE-OBJECT inserts spaces as specified (and only as specified: it no longer includes conditional newlines). ** PRINC-TO-STRING binds *PRINT-READABLY* to NIL (as well as *PRINT-ESCAPE*). ** PPRINT-LOGICAL-BLOCK signals a TYPE-ERROR if its :PREFIX or :PER-LINE-PREFIX argument does not evaluate to a string. -
sbcl_0_8_13
db1814b9 · ·changes in sbcl-0.8.13 relative to sbcl-0.8.12: * new feature: SB-PACKAGE-LOCKS. See the "Package Locks" section of the manual for details; for now, package locks can be disabled by removing :SB-PACKAGE-LOCKS in customize-target-features.lisp, but if no major problems are found then it is likely that they will be compiled in unconditionally. * major incompatible change: LOAD-FOREIGN and LOAD-1-FOREIGN are now unsupported operators on all platforms. To load a shared library into SBCL, use SB-ALIEN:LOAD-SHARED-OBJECT. To load a non-shared object file, link it into a shared library outside of SBCL and load it using SB-ALIEN:LOAD-SHARED-OBJECT. (incidentally fixes bug #79) * bug workaround: ROOM T and the GC were not working together reliably, because invariants expected by the SB!VM:INSTANCE-USAGE reporting facility aren't preserved. That reporting has been disabled, so now until and unless someone figures out how to make it work reliably with the current GC, (ROOM T) is equivalent to (ROOM). * minor incompatible change: as threatened around sbcl-0.8.0, the home package of MOP-related symbols is now SB-MOP, not SB-PCL. The symbols are also exported from SB-PCL for backwards compatibility, but more so than before SB-PCL should be treated as an implementation-internal package. * fasl format changed: SBCL 0.8.13 fasls are incompatible with those of earlier versions * the SB-SPROF contrib now works on (most) non-x86 architectures. It is known as of this release not to work on the Alpha, however. * fixed bug #167: errors signalled due to illegal syntax in method bodies are now more legible. * fixed bug #338: instances of EQL-SPECIFIER are now valid type designators and can hence be used with TYPEP. * fixed bug #333: CHECK-TYPE now ensures that the type error signalled, if any, has the right object to be accessed by TYPE-ERROR-DATUM. (reported by Tony Martinez) * fixed bug #340: SETF of VALUES obeys the specification in ANSI 5.1.2.3 for multiple-value place subforms. (reported by Kalle Olavi Niemetalo) * fixed bug #334: programmatic addition of slots using specialized methods on SB-MOP:COMPUTE-SLOTS works for :ALLOCATION :INSTANCE and :ALLOCATION :CLASS slots. * fixed bug #269: SCALE-FLOAT scales floats by any integer, not just float exponents. (rereported by Peter Seibel) * fixed a bug: #\Space (and other whitespace characters) are no longer considered to be macro characters in standard syntax by GET-MACRO-CHARACTER. * fixed bug: initialization of condition class metaobjects no longer causes an instance of the condition to be created. (reported by Marco Baringer) * fixed bug: it is now possible to have slots such that SB-MOP:SLOT-DEFINITION-ALLOCATION of the effective slot description is neither :INSTANCE nor :CLASS. * fixed bug: the ctor optimization of MAKE-INSTANCE now respects user-defined methods on SLOT-BOUNDP-USING-CLASS and (SETF SLOT-VALUE-USING-CLASS), and no longer causes errors with non-standard SLOT-DEFINITION-ALLOCATION values. * fixed bugs: various race conditions handling exiting threads. CL-PPCRE's thread torture test now passes. * fixed arguably-a-bug: GC time proportional to number of threads in system even when most of them are idle * optimization: improved performance of BIT and SBIT on bit-vectors. * .fasl file incompatibility: The fasl file version number has been incremented because of changes associated with package locks. -
sbcl_0_8_12
bf5a814e · ·changes in sbcl-0.8.12 relative to sbcl-0.8.11: * minor incompatible change: the system no longer provides optimization hints (conditions which are TYPEP SB-EXT:COMPILER-NOTE) for conforming code in default compilation mode; these hints are still emitted when higher SPEED optimization is requested. * new contrib module: a sampling profiler (profiling by statistical sampling, rather than by instrumenting functions) is available as the SB-SPROF contrib. (thanks to Gerd Moellmann and Juho Snellman) * the behaviour of the standard function ED is now customizeable by third parties through a hook variable: see ED's documentation string for information on the protocol. * the compiler no longer emits efficiency notes for (FUNCALL X) when the type of X is uncertain under default optimization settings. * fixed bug 276: mutating a binding of a specialized parameter to a method to something that is not TYPEP the specializer is now possible. * fixed bugs 45d and 118: DOUBLE-FLOAT[-NEGATIVE]-EPSILON now exhibit the required behaviour on the x86 platform. (thanks to Peter van Eynde, Eric Marsden and Bruno Haible) * fixed bug 335: ATANH now computes the inverse hyperbolic tangent even for difficult arguments. (reported by Peter Graves) * fixed bug 141a: the backquote printer now descends quoted structure. * fixed another bug in backquote printing: no more destructive modification of the form's list structure. (reported by Brian Downing) * fixed bug in INTERRUPT-THREAD: pin the function, so that it cannot move between its address being taken and the call to interrupt_thread, fixing a crashing race condition. * the SB-POSIX contrib implementation has been adjusted so that it no longer exhibits ridiculously poor performance when constructing instances corresponding to C structs. -
sbcl_0_8_11
e6d893dd · ·changes in sbcl-0.8.11 relative to sbcl-0.8.10: * minor incompatible change: the sb-grovel contrib now treats C structures as alien (in the sense of SB-ALIEN) objects rather than as undistinguished (simple-array (unsigned-byte 8) (*))s. This has implications for memory management of client code (sb-grovel-returned objects must now be manually managed) and for type safety (alien objects now have full types). * new feature: the SB-EXT:MUFFLE-CONDITIONS declaration should be used to control emission of compiler diagnostics, rather than the SB-EXT:INHIBIT-WARNINGS OPTIMIZE quality. See the manual for documentation on this feature. The SB-EXT:INHIBIT-WARNINGS quality should be considered deprecated. * install.sh now installs the user manual as well * (not quite a new documentable feature, but worth considering in the light of the new SB-EXT:MUFFLE-CONDITIONS declaration): the beginnings of a semantically meaningful condition hierarchy is under development, for use in SB-EXT:MUFFLE-CONDITIONS and by IDEs. * fixed bug: PARSE-NAMESTRING now accepts any valid pathaname designator as the defaults argument. * fixed bug: Displaced arrays whose displaced-to array has become too small now cause ARRAY-DIMENSION to signal an error, providing for safer bounds-checking. (reported by Bruno Haible) * fixed bug: DEFCLASS slot definitions with identical :READER and :WRITER names now signal a reasonable error. (reported by Thomas Burdick) * fixed bug: CLOSE :ABORT T on appending stream no longer causes file deletion. * fixed bug: Invalid slot specification errors now print correctly. (thanks to Zach Beane) * fixed bug 320: Shared to local slot value transfers in class redefinitions now happen corrently from superclasses as well. (reported by Bruno Haible) * fixed bug 316: SHIFTF now accepts VALUES forms. (reported by Bruno Haible) * fixed bug 322: DEFSTRUCT :TYPE LIST type predicates now handle improper lists correctly. (reported by Bruno Haible) * fixed bug 313: source-transform for <fun-name> was erroneously applied to a call of a value of a variable with name <fun-name>. (reported by Antonio Menezes Leitao) * fixed bug 307: The obsolete instance protocol ensures that subclasses are properly obsoleted. (thanks to Nikodemus Siivola) * fixed bug 298, revealed by Paul F. Dietz' test suite: SBCL can remove dead unknown-values globs from the middle of the stack. * added a new restart to *BREAK-ON-SIGNALS* handling to make it easier to resume long computations after using *BREAK-ON-SIGNALS* to diagnose and fix failures. (thanks to Nikodemus Siivola) * fixed bug reported by PFD in lisppaste #747 (and Bruno Haible from CLISP test suite): WRITE-TO-STRING is not constant-foldable. * fixed bugs in COMPLEX type specifier: UPGRADED-COMPLEX-PART-TYPE is now consistent with (COMPLEX <x>); bugs in treatment of COMPLEX MEMBER and UNION types have likewise been fixed. (thanks to Bruno Haible) * fixed a (fairly theoretical) bug in string printing: if *PRINT-READABLY* is true, signal PRINT-NOT-READABLE if the string does not have array-element-type equal to the most general string type. * fixed bug: SET-PPRINT-DISPATCH does not immediately resolve function name. (thanks to Nikodemus Siivola) * fixed bug: compile-time format string checker failed on non-closed ~{. (reported by Thomas F Burdick) * fixed bug: as reported by Kalle Olavi Niemitalo on #lisp IRC, don't warn on legal loop code involving more than one aggregate boolean. (thanks to Nikodemus Siivola) * fixed bug: as reported by Peter Graves on #lisp IRC, passing a NIL in keyword position to MAKE-PACKAGE was not being reported as invalid. * fixed bug: as reported by Juan Ripoll on cmucl-imp, MULTIPLE-VALUE-BIND should be able to lexically bind lambda list keywords. * fixed bugs 280 and 312: the checking for multiple definitions in a file is less likely to become confused by uses of inline functions. * fixed bug: the #S reader macro performs the keyword coercion specified for slot names. (reported by Kalle Niemitalo) * fixed bug: lambda lists may contain symbols whose names start with & but are not lambda-list-keywords; their occurrence triggers a STYLE-WARNING. * fixed bug 321: define-method-combination argument lambda lists do not cause invalid code to be generated when &optional or &aux variables have default values. (reported by Bruno Haible) * fixed bug 327: system subclasses of STRUCTURE-OBJECT or CONDITION have CLOS classes; this appears also to have fixed reported instability in stack exhaustion detection. * fixed bug: the CONTROL-ERROR from ABORT, CONTINUE and MUFFLE-WARNING when no associated restart is present is now printable. * optimization: rearranged the expansion of various defining macros so that each expands into only one top-level form in a :LOAD-TOPLEVEL context; this appears to decrease fasl sizes by approximately 10%. * optimization: used a previously little-used slot in symbols to cache SXHASH values, yielding a 5-10% compiler speedup. (thanks to Juho Snellman) * fixed some bugs revealed by Paul Dietz' test suite: ** MAKE-INSTANCES-OBSOLETE returns the class name when called with a symbol. ** Fixed an optimization bug related to inheritance of initforms from local to shared slots. ** FILE-POSITION works as specified on BROADCAST-STREAMs. ** CAST optimizer forgot to flush argument derived type. ** print/read consistency on floats is now orders of magnitude more likely. (thanks also to Bruno Haible for a similar report and discussions) ** removed stack cleaning in the cleanup part of UNWIND-PROTECT. ** IMAGPART is specified (infelicitously) to return (* 0 <thing>) for objects of type REAL. Make it so. ** SXHASH is specified (infelicitously) to respect similarity, which means that (SXHASH 0.0) must equal (SXHASH -0.0). Make it so. (thanks to Markus Ziegler) ** on the Alpha, the compiler succeeds in compiling functions returning a known number of arguments greater than 63. ** fixed handling of invalid NIL arguments in keyword position in local calls. ** fixed non-pretty printing of arrays with *PRINT-RADIX* being true. ** provided a readably-printable representation for RANDOM-STATE objects. ** ensured that pathnames, where they have a namestring, always print using #P"..." syntax. -
sbcl_0_8_10
1a5b9733 · ·changes in sbcl-0.8.10 relative to sbcl-0.8.9: * Support for the forthcoming 2.0 version of the NetBSD kernel running on x86 hardware has been added. (thanks to Perry E. Metzger most immediately, and others for their past work) * SBCL now runs on OpenBSD 3.4. (Thanks to Scott Parish; 3.4 is the current release version; SBCL's OpenBSD support had been broken since about the time of OpenBSD's switch to ELF binary format.) * [placeholder for DX summary] ** user code with &REST lists declared dynamic-extent, under high speed or space and low safety and debug optimization policy. * The manual has been converted to Texinfo format and the debugger chapter from the cmucl manual has been added. * A facility has been added to extract documentation strings from sbcl and store them as Texinfo-formatted snippets for inclusion in the manual (via Texinfo's @include directive) * bug fix: compiler emitted division in optimized DEREF. (thanks for the test case to Dave Roberts) * bug fix: multidimensional simple arrays loaded from FASLs had fill pointers. (reported by Sean Ross) * bug fix: PROFILE output is printed nicely even for large numerical values. (thanks to Zach Beane) * bug fix: streams with element-type (SIGNED-BYTE <N>) for <N> greater than 32 handle EOF correctly. * bug fix: on X86 an immediate argument of the IMUL instruction is correctly printed in disassembly. (thanks to Lutz Euler) * bug fix: class slots in redefined classes preserve their old values. (thanks to Bruno Haible and Nikodemus Siivola) * bug fix: compilation of funcalls of CXX+R (e.g. CDDR) now succeeds. (reported by Marco Baringer) * fixed some bugs revealed by Paul Dietz' test suite: ** READ-SEQUENCE now works on ECHO-STREAMs. ** RATIONALIZE works more according to its specification. (thanks to Bruno Haible) -
sbcl_0_8_9
dc56babb · ·changes in sbcl-0.8.9 relative to sbcl-0.8.8: * deprecation of old extension: *DEBUG-PRINT-LEVEL* and *DEBUG-PRINT-LENGTH* are now deprecated in favor of the new, more general SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST* mechanism. (This should matter to you only if you rebind the printer control variables and then find you want different bindings in the debugger than in the ordinary execution of your program.) * The runtime build system has been tweaked to support building (on SPARC/SunOS) using a C compiler which invokes Sun's own assembler and linker. (thanks to Nikodemus Siivola) * Unbound, undefined, undeclared variables now trigger full WARNINGs, not just STYLE-WARNINGs, on the assumption that this is more often programmer error than deliberate exploitation of undefined behaviour. * optimization: the hash algorithm for strings has changed to one that is less vulnerable to spurious collisions. (thanks to Juho Snellman) * optimization: VECTOR-POP, VECTOR-PUSH-EXTEND and REPLACE do less needless bounds checking. (thanks to Juho Snellman) * optimization: implemented multiplication as a modular (UNSIGNED-BYTE 32) operation on the PPC backend. * fixed some bugs revealed by Paul Dietz' test suite: ** ADJUST-ARRAY now copies the datum in a zero rank array if required. ** ADJUST-ARRAY no longer adjusts non-adjustable arrays. ** MAKE-STRING-INPUT-STREAM accepts NIL as a value for :END. ** MAKE-STRING-INPUT-STREAM functions correctly for strings with element-type NIL. ** CLEAR-INPUT accepts NIL and T for its (optional) stream argument. ** Ratios can now be printed correctly with *PRINT-BASE* bound to 2, 8 or 16. ** ECHO-STREAMs no longer attempt to echo the end of file value to their output stream on EOF from read. ** CONCATENATED-STREAM-STREAMS discards constituent streams which have been read to end-of-file. ** CLOSE works as expected on the null CONCATENATED-STREAM, and on STRING-STREAMS. ** Printing symbols with *PRINT-CASE* :CAPITALIZE respects the description of determination of which consecutive characters constitute a word. ** Printing the "Space" character with escaping on now yields "#\\ ", rather than "#\\Space", as mandated by ANSI 22.1.3.2. ** Reading floating-point numbers with *READ-BASE* set to a number less than 10 works correctly. ** Reading floating-point numbers with *READ-BASE* set to a number more than 10 works correctly. ** Printing with *PRINT-READABLY* targets the standard readtable, not the readtable currently in effect. -
sbcl_0_8_8
464f56e1 · ·changes in sbcl-0.8.8 relative to sbcl-0.8.7: * minor incompatible change: parsing of namestrings on a physical (Unix) host has changed; numbers after the final #\. in a namestring are no longer interpreted as a version field. This is intented to be largely invisible to the user, except that the meaning of the namestring "*.*.*" has changed: it now refers to a pathname with :TYPE :WILD :NAME #<pattern "*.*">. This namestring should usually be replaced by (make-pathname :name :wild :type :wild :version :wild) with the added benefit that this is more likely to be portable. As a consequence of this change, the :IF-EXISTS :NEW-VERSION option to OPEN now signals an error if the file being opened exists; this may have an impact on existing code. * fixed bug 190: RUN-PROGRAM should now work properly, respecting signals received, on the PowerPC platforms (both Linux and Darwin). (thanks to Pierre Mai for pointing out the location of the error) * several fixes on OS X: The system now builds and runs cleanly on Panther (10.3), and works around sigreturn bug (no more SIGFPEs). (thanks to Brian Mastenbrook) * bug fix: DECODE-UNIVERSAL-TIME now accepts timezone arguments with second-resolution: integer multiples of 1/3600 between -24 and 24. (thanks to Vincent Arkesteijn) * bug fix: functions =, /=, <, <=, >, >= did not check the argument type when called with 1 argument; PEEK-CHAR checked type of PEEK-TYPE only after having read first character from a stream. (reported by Peter Graves) * bug fix: the garbage collector now has much better locality behaviour, and in particular no longer treats all memory as being exhausted when many small objects point to each other in a deeply recursive manner. * bug fix: arrays specialized on (UNSIGNED-BYTE 15) are now recognized as being TYPEP their class. * bug fix: the PUSHNEW documentation string has been corrected. (thanks to Vincent Arkesteijn) * bug fix: defaulting of the value for the last of an atypically large number of multiple values being bound was not being performed correctly on the Alpha or PPC platforms * optimization: implemented multiplication as a modular (UNSIGNED-BYTE 32) operation on the x86 backend. * optimization: SEARCH on simple-base-strings can now be open-coded. (see also contrib/compiler-extras.lisp for inspiration for teaching the compiler about the Boyer-Moore algorithm). * value, returned by MAX (and MIN) called with several EQUALP, but not EQL, arguments now does not depend on compiler settings. * fixed some bugs revealed by Paul Dietz' test suite: ** in stack analysis liveness information is propagated from non-local entry points. ** pathwise CAST removing failed when the CAST node did not start a block. ** INPUT-STREAM-P, OUTPUT-STREAM-P, STREAM-ELEMENT-TYPE and OPEN-STREAM-P signal a TYPE-ERROR if their argument is not a stream. ** LOAD-LOGICAL-PATHNAME-TRANSLATIONS returns NIL if the logical host is already defined. ** RENAME-FILE works on streams instead of signalling an internal type error. ** PEEK-CHAR uses the current readtable when determining whether or not a character is whitespace. ** MERGE-PATHNAMES handles the case when the pathname does not specify a name while the default-pathname specifies a version. ** Pathnames now stand a better chance of respecting print/read consistency. ** Attempting to use standardized file system operators with a pathname with invalid :DIRECTORY components signals a FILE-ERROR. ** OPEN :DIRECTION :IO no longer fails to work on non-existent files. ** DIRECTORY on logical pathnames is more correct. ** CLEAR-INPUT, CLEAR-OUTPUT, FINISH-OUTPUT and FORCE-OUTPUT signal a TYPE-ERROR if their argument is not a stream. ** READ-BYTE and WRITE-BYTE signal a TYPE-ERROR if their stream designator argument does not designate a stream. ** OPEN-STREAM-P and INPUT-STREAM-P on synonym streams work by examining the synonym. ** STREAM-ELEMENT-TYPE and FRESH-LINE on broadcast-streams now work as specified. ** OPEN and WITH-OPEN-STREAM allow opening streams with element-type larger than ([UN]SIGNED-BYTE 32). -
sbcl_0_8_7
895890a6 · ·changes in sbcl-0.8.7 relative to sbcl-0.8.6: * When built with the :SB-FUTEX feature, threaded builds now take advantage of the "fast userspace mutex" facility in Linux kernel 2.6 for faster/more reliable mutex and condition variable support. * Incompatible change (but one you probably shouldn't have been using anyway): the interface and code for arbitrating between multiple threads in the same user session has been redesigned. * bug fix: GET-SETF-EXPANSION no longer throws an internal type error when called without an explicit environment argument. (thanks to Nikodemus Siivola) * bug fix: buffered :DIRECTION :IO streams are less likely to become confused about their position. (thanks to Adam Warner and Gerd Moellmann) * bug fix: Pretty printing backquoted forms with unquotations in the argument list position of various code constructs such as LAMBDA now works correctly. (reported by Paul Dietz) * bug fix: Pretty printing unquotations no longer loses all stream position information. * optimization: performance of string output streams is now less poor for multiple small sequence writes. * optimization: performance of CSUBTYPEP in the presence of complex expressions involving CONS and NOT many times has been improved. (reported by Paul Dietz) * ASDF-INSTALL bug fix: now parses *PROXY* properly. (thanks to Sean Ross) * SB-SIMPLE-STREAMS enhancement: simple-streams can now be used as streams for the REPL, for the debugger, and so on. (thanks to David Licteblau) * DEFINE-CODITION is more efficient. (thanks to Brian Mastenbrook) * fixed some bugs revealed by Paul Dietz' test suite: ** the value of the :REHASH-THRESHOLD argument to MAKE-HASH-TABLE is ignored if it is too small, rather than propagating through to cause DIVIDE-BY-ZERO or FLOATING-POINT-OVERFLOW errors. ** extremely complex negations of CONS types were not being sufficiently canonicalized, leading to inconsistencies in SUBTYPEP. ** VALUES tranformer lost derived type. -
sbcl_0_8_6
1462adfb · ·changes in sbcl-0.8.6 relative to sbcl-0.8.5: * fixed a bootstrapping bug: the build process no longer assumes that the various BOOLE-related constants have the same value in host and target lisps. (noted by Paul Dietz' test suite on an SBCL binary built from CLISP) * The system can now be dynamically linked on the MIPS platform, which enables dynamic loading of foreign code from Lisp. (thanks to Ralf Baechle for discussions on the MIPS ABI) * The system now records debugging information for its own source files in a filesystem-position-independent manner, relative to the "SYS" logical host. * fixed a compiler bug: MV-LET convertion did not check references to the "max args" entry point. (reported by Brian Downing) * tweaked disassembly notes to be less confident about proclaiming some instruction as an LRA. (thanks to Brian Downing) * contrib update: SB-ACLREPL is now threadsafe; multiple listeners now each have their own history, command character, and other characteristics. (thanks to David Lichteblau) * fixed some bugs revealed by Paul Dietz' test suite: ** compiler failure in compiling LOGAND expressions including a constant 0 ** Implementation of ASH-MOD32 on X86 and PPC did not work for the shift greater than 32. ** FLUSH-DEST did not mark blocks for type check regeneration. ** HANDLER-CASE failed to accept declarations in handler clauses in some circumstances. -
sbcl_0_8_4
224466fa · ·changes in sbcl-0.8.4 relative to sbcl-0.8.3: * incompatible change: The --disable-debugger command line option now clobbers the debugger at a more fundamental level, by redefining #'INVOKE-DEBUGGER instead of by rebinding *DEBUGGER-HOOK*. The main difference is that BREAK is specified by ANSI to ignore *DEBUGGER-HOOK* and INVOKE-DEBUGGER regardless. Under the old system, BREAK would enter the debugger REPL and then suffer recursive errors because *DEBUG-IO* is also messed up in --disable-debugger mode; while under the new system, BREAK in --disable-debugger mode terminates the system just as an unhandled error would. * fixed compiler performance when processing loops with a step >1; * bug fix: DOCUMENTATION now retrieves generic function documentation. Also, DOCUMENTATION and (SETF DOCUMENTATION) support has been systematized, and now supports the methods specified by ANSI, along with a default method and a method for slot documentation. (reported by Nathan Froyd) * bug fix: effective methods associated with a generic function are no longer cached over a change of that generic function's method combination. (reported by Andreas Fuchs) * bug fix: RUN-PROGRAM now does not fail if some element in $PATH names a non-existent directory. (thanks to Andreas Fuchs) * bug fix: ROUND and TRUNCATE could, under certain circumstances on the PPC platform, lead to stack corruption; this has been fixed. (reported by Rainer Joswig) * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower no longer ever returns 1 instead of 0. (thanks to Lars Brinkhoff) * fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum arithmetic in general, is now much more reliable on the PPC platform. * bug fix: LOGCOUNT on (UNSIGNED-BYTE 64) objects on the Alpha platform now returns the right answer. * optimization: restored some effective method precomputation in CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of precomputation is now tunable. * optimization: compiler-internal data structure use has been reviewed, and changes have been made that should improve the performance of the compiler by about 20%. * optimization: performance of FILL (and :INITIAL-ELEMENT) on simple-base-strings and simple-bit-vectors is improved. * optimization: the optimization of 32-bit logical and arithmetic functions introduced in version 0.8.3 on the x86 has been implemented on the mips, ppc and sparc platforms; an implementation of the same facility, but for 64-bit arithmetic, has been added for the alpha. * microoptimization: the compiler is better able to make use of the x86 LEA instruction for multiplication by constants. * bug fix: in some situations compiler did not report usage of generic arithmetic in (SPEED 3) policy. * bug 145b fix: compiler used wrong type specifier while converting MEMBER-types to numeric. * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug McNaught) * bug fix: (SETF AREF) on byte-sized-element arrays with constant index argument now works properly on the Alpha platform. * bug fix: floating point exception treatment on the Alpha platform is improved. * bug fix: FILE-POSITION works much better on string input and output streams. (thanks to Nikodemus Siivola) * bug fix: many threading/garbage collection symptoms sorted. SB-THREAD:INTERRUPT-THREAD now safe to call on a thread that might be pseudo-atomic. * internal change: Stopping for GC is now done with signals not ptrace. GC is now done in whichever thread wanted it, instead of in the parent. * bug fix: GC hooks (missing since 0.8) reinstated, so finalizers work again. * bug fix: result form in DO is not contained in the implicit TAGBODY. * incompatible change: ICR structure is changed; the value part of CONTINUATION is now called LVAR; corresponding functions are renamed (e.g. SB-C::CONTINUATION-TYPE has become SB-C::LVAR-TYPE). * added type deriver for ISQRT (thanks to Robert E. Brown). * bug fix: better support for loading from the command line when an initialization file sets (READTABLE-CASE *READTABLE*). (thanks to Adam Warner) * fixed some bugs revealed by Paul Dietz' test suite: ** the RETURN clause in LOOP is now equivalent to DO (RETURN ...). ** ROUND and FROUND now give the right answer when given very small float arguments. ** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all circumstances. ** optimizer for (EXPT X 0) did not work for X not of type FLOAT. ** (GCD 0 <negative-integer>) returned <negative-integer>. ** LCM should return a non-negative integer. ** PARSE-INTEGER returned the index of a terminator instead of the upper bounding index of a substring in case :JUNK-ALLOWED NIL. ** PARSE-INTEGER returned an incorrect index being applied to a displaced string. ** LCM with two arguments of 0 returns 0 rather than signalling DIVISION-BY-ZERO. ** unsigned addition of a 32-bit constant with the high bit set no longer causes an internal compiler error on the x86. ** LOGBITP accepts a non-negative bignum as its INDEX argument. ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD with negative last argument. ** byte specifiers with zero size and position no longer cause an error during type derivation. ** bignum multiplication on the Alpha platform now returns the right answer. * porting: The system now builds on SuSE AMD64, although it still generates a 32-bit binary. * .fasl file incompatibility: The fasl file version number has been incremented (because of the changes to internal compiler data structures referred to above). -
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sbcl_0_8_3
174feb79 · ·changes in sbcl-0.8.3 relative to sbcl-0.8.2: * SBCL now builds and runs on MacOS X (version 10.2), or perhaps more accurately, on the Darwin kernel running on PowerPC hardware. (thanks to Brian Mastenbrook, Pierre Mai and Patrik Nordebo) * Compiler code deletion notes now signal a condition of type SB-EXT:CODE-DELETION-NOTE (a subtype of SB-EXT:COMPILER-NOTE) with an associated MUFFLE-WARNING restart. * The compiler now performs limited argument count validation of constant format strings in FORMAT, and where appropriate in ERROR, CERROR and WARN. (thanks to Gerd Moellmann) * New ASDF-INSTALL contrib can be used for automatic download and installation of third-party Lisp code from CCLAN or other sites via CLiki. * Threaded builds (:SB-THREAD) now support SB-THREAD:INTERRUPT-THREAD, which forces another thread to execute a function supplied by the caller. * bug 75 fix: WITH-OUTPUT-TO-STRING (and MAKE-STRING-OUTPUT-STREAM) now accept and act upon their :ELEMENT-TYPE keyword argument. (reported by Martin Atzmueller, Edi Weitz) * bug fix: FILE-POSITION now accepts position designators up to ARRAY-DIMENSION-LIMIT or the extreme of the off_t range, whichever is the greater. (thanks to Patrik Nordebo) * bug fix: MAKE-ARRAY ignored :INITIAL-CONTENTS NIL. (reported by Kalle Olavi Niemitalo) * bug fix: the CLASS-PROTOTYPE of the GENERIC-FUNCTION class is now printable. (reported by Eric Marsden) * bug fix in sb-posix: mmap() now works on systems with a 64-bit off_t, including Darwin and FreeBSD. (thanks to Andreas Fuchs) * x86 bug fix in control stack exhaustion checking: now shows backtrace * bug fix in WITH-TIMEOUT: now the body can have more than one form. (thanks to Stig Sandoe) * bug fix in READ-SEQUENCE: READ-SEQUENCE following PEEK-CHAR or UNREAD-CHAR now correctly includes the unread character in the target sequence. (thanks to Gerd Moellmann) * bug fix in threaded builds: the system can now be suspended and resumed by shell job control with minimal disruption. * bug fixes in times and timezones >2038AD * better handling of "where is GNU make?" problem in build scripts (thanks to Nikodemus Siivola) * new optimization: inside a named function any reference to a function with the same name is considered to be a self-reference; this behaviour is controlled with SB-C::RECOGNIZE-SELF-CALLS optimization quality. * new optimization on x86: logical functions and + now have optimized (UNSIGNED-BYTE 32) versions, which are automatically used when the result is truncated to 32 bits. * VALUES declaration is partially enabled. * fixes in SB-GROVEL (thanks to Andreas Fuchs) * fixed some bugs revealed by Paul Dietz' test suite: ** The system now obeys the constraint imposed by UPGRADED-ARRAY-ELEMENT-TYPE that the upgraded array element types form a lattice under type intersection. ** FFLOOR, FTRUNCATE, FCEILING and FROUND work with integers. ** ASSOC now ignores NIL elements in an alist. ** CEILING now gives the right answer with MOST-NEGATIVE-FIXNUM and (1+ MOST-POSITIVE-FIXNUM) answers. ** The addition of a method with invalid qualifiers to a generic function does not cause an error to be signalled immediately; a warning is signalled, and the error is generated only on calling the generic function. * changed .fasl file version number, in part to add type codes for new array subtypes UNSIGNED-BYTE 7, 15, 29, and 31 mandated by obscure ANSI requirements -
sbcl_0_8_2
0eb4d7b8 · ·changes in sbcl-0.8.2 relative to sbcl-0.8.1: * fixed bug 148: failure to inline-expand a local function left garbage, confusing the compiler. * fixed bugs 3cd: structure slot readers perform type check if the slot can have an invalid value (i.e. it is either not initialized or can be written with a less specific slot writer). * bug fix: the compiler now traps array references to elements off the end of an array; previously, the bounds checking in some circumstances could go off-by-one. * improved MACHINE-VERSION, especially on Linux (thanks to Lars Brinkhoff) * type declarations for array element types now obey the description on the CLHS page "Declaration TYPE", as per discussions on sbcl-help around 2003-05-08. This means that a declaration (TYPE (ARRAY FOO) BAR) means that, within the scope of the declaration, all references to BAR will be asserted or assumed (with THE, so dependent on compiler policy) to involve objects of type FOO. Note that no such declaration is implied in (MAKE-ARRAY .. :ELEMENT-TYPE 'FOO). * declared types of functions from the "Conditions" chapter. (reported by Paul Dietz) * bug fix: CERROR accepts a function as its first argument. * bug fix: NTH an NTHCDR accept a bignum as index arguments. (reported by Adam Warner) * optimization: character compare routines now optimize comparing against a constant character. (reported by Gilbert Baumann) * bug fix: (SETF AREF) on byte-sized-element arrays with constant index argument now works properly on the MIPS platform. * fixed compiler failure on (TYPEP x '(NOT (MEMBER 0d0))). * repeated evaluation of the same DEFSTRUCT, a slot of which is declared to have a functional type, does not cause an error anymore. * fixed bug: sometimes MAKE-INSTANCE did not work with classes with many :DEFAULT-INITARGS. (reported by Istvan Marko) * fixed bug: if last continuation of a deleted block has a destination, this destination should be deleted too. (reported by ohler on #lisp) * fixed a bug in the bootstrap process: the host compiler's values of ARRAY-DIMENSION-LIMIT and ARRAY-TOTAL-SIZE-LIMIT no longer leak into the newly-built SBCL. (reported by Eric Marsden on #lisp, test case from Patrik Nordebo) * improved the ability of the disassembler on the PPC platform to provide helpful disassembly notes. * SB-MOP:CLASS-PROTOTYPE on built-in-classes returns an instance of the class in more cases than previously. * bug fix: FILE-POSITION now understands :START and :END for STRING-INPUT-STREAMs. (thanks to Nikodemus Siivola) * bug fix: (SIGNED-BYTE 8) streams no longer return (UNSIGNED-BYTE 8) data. (thanks to David Lichteblau) * bug fix: it is possible to add a method to a generic function without lambda list. * bug fix: reader failed to signal END-OF-FILE inside an object representation. (reported by Nikodemus Siivola) * fixed some bugs revealed by Paul Dietz' test suite: ** LAST and [N]BUTLAST should accept a bignum. ** condition slot accessors are methods. ** (VECTOR NIL) is a subtype of STRING. -
sbcl_0_8_1
ef8086e0 · ·changes in sbcl-0.8.1 relative to sbcl-0.8.0: * minor incompatible change: some nonsensical specialized lambda lists (used in DEFMETHOD) which were previously ignored now signal errors. * minor incompatible change: the system is now aware of the types of variables in the COMMON-LISP package, and will signal errors for most violations of these type constraints (where previously they were silently accepted). * minor incompatible change: COMPILE-FILE now uses the freedom afforded (ANSI 3.2.2.3) to use derived function types for functions defined in the same file. This also permits the system to warn on static type mismatches and function redefinition. (Currently it does not work with high DEBUG level.) * minor incompatible change: VALUES declaration is disabled. * When issuing notes, the compiler now signals a condition of type SB-EXT:COMPILER-NOTE, and provides an associated MUFFLE-WARNING restart for use in user handlers. It is expected that the COMPILER-NOTE condition will eventually become a condition supertype to a hierarchy of note types, which will then be handleable in a similar fashion. However, at the moment, no such note subtypes yet exist. (SB-INT:SIMPLE-COMPILER-NOTE exists, but it's an implementation detail, not a classification for the purpose above.) * Changes in type checking closed the following bugs: ** type checking of unused values (192b, 194d, 203); ** template selection based on unsafe type assertions (192c, 236); ** type checking in branches (194bc). * A short form of VALUES type specifier has ANSI meaning (it has increased the number of situations when SBCL cannot perform type checking). * fixed bug in DEFSTRUCT: once again, naming structure slots with keywords or constants is permissible. * STREAM-READ-SEQUENCE and STREAM-WRITE-SEQUENCE now have methods defined on the relevant FUNDAMENTAL-BINARY-{INPUT,OUTPUT}-STREAM classes. (thanks to Antonio Martinez) * improved ANSIness in DESCRIBE: The DESCRIBE function no longer outputs FRESH-LINE or TERPRI, and no longer converts its stream argument to a pretty-print stream. Instead, it leaves any such operations to DESCRIBE-OBJECT methods. * bug fix: APROPOS now respects the EXTERNAL-ONLY flag. (reported by Teemu Kalvas) * bug fix: NIL is now a valid destructuring argument in DEFMACRO lambda lists. (thanks to David Lichteblau) * bug fix: Defining a generic function with a :METHOD-CLASS being a subclass of STANDARD-METHOD no longer causes stack exhaustion. (thanks to Gerd Moellmann) * fixed bug 246: increased compilation speed of long MULTIPLE-VALUE-BIND (and likewise of NTH-VALUE with a constant integer argument) * a contributed module implementing COMPILER-LET and MACROEXPAND-ALL has been included. * DEFCONSTANT now throws a condition of type SB-EXT:DEFCONSTANT-UNEQL if it is being asked to redefine a constant to a non-EQL value; CONTINUE and ABORT restarts respectively change and preserve the value. * fixed bug 63: The code walker, part of the implementation of CLOS, is now better at handling symbol macros. * bug fix: There is no longer an internal implementation type named CL:LENGTH. (reported by Raymond Toy) * bug fix: In macro-like defining macros/special operators the implicit block does not enclose the lambda list. * fixed bugs 10 and 43: Bare VALUES, AND, OR and MEMBER symbols (not enclosed in parentheses) are not suitable as type specifiers, and their use properly signals an error now. * bug fix: An argument count mismatch for a type specifier in code being compiled no longer causes an unhandled error at compile time, but signals a compile-time warning. * fixed simple vector readable printing * bug fix: DESCRIBE takes more care over whether the class precedence list slot of a class is bound before accessing it. (reported by Markus Krummenacker) * bug fix: FORMATTER can successfully compile pretty-printer format strings which use variants of the ~* directive inside. * bug fix: SEARCH now applies its TEST predicate to the elements of the arguments in the correct order. (thanks to Wolfhard Buss) * fixed bug 235b: The compiler uses return types of MAPCAR and friends in type inference. (thanks to Robert E. Brown) * bug fix: Reading in symbols with an explicit package name of "" (e.g. '||::FOO) now works correctly. (reported by Henrik Motakef) * fixed some bugs revealed by Paul Dietz' test suite: ** NIL is now allowed as a structure slot name. ** Arbitrary numbers, not just REALs, are allowed in certain circumstances in LOOP for-as-arithmetic clauses. ** Multiple class redefinitions before slot access no longer causes a type error. ** (SETF FIND-CLASS) now accepts NIL as an argument to remove the association between the name and a class. ** Generic functions with non-standard method-combination and over five methods all of which return constants no longer return NIL after the first few invocations. (thanks to Gerd Moellmann) ** CALL-NEXT-METHOD with no arguments now passes the original values of the arguments, even in the presence of assignment. ** Functions [N]SUBST*, LAST, NRECONC, [N]SUBLIS may return any object. ** DISASSEMBLE works with closures and funcallable instances. ** ADD-METHOD now returns the generic function, not the new method. ** FIND-METHOD signals an error if the lengths of the specializers is incompatible with the generic function, even if the ERRORP argument is true. ** TYPE-OF returns recognizeable subtypes of all built-in-types of which its argument is a member. ** DEFCLASS only redefines the class named by its class-name argument if that name is the proper name of the class; otherwise, it creates a new class. ** SLOT-UNBOUND now correctly initalizes the CELL-ERROR-NAME slot of the UNBOUND-SLOT condition to the name of the slot. ** (SETF (AREF bv 0) ...) did not work for bit vectors. ** SLOT-UNBOUND and SLOT-MISSING now have their return values treated by SLOT-BOUNDP, SLOT-VALUE, (SETF SLOT-VALUE) and SLOT-MAKUNBOUND in the specified fashion. -
sbcl_0_8_0
c7cbd9e3 · ·changes in sbcl-0.8.0 relative to sbcl-0.8alpha.0 * SBCL now builds using CLISP (version of late April 2003 from CVS) as cross-compilation host. As a consequence, we can now bootstrap our way up to SBCL starting with a bare gcc toolchain and human-readable source code (first the source to CLISP, then the source to SBCL). * A contributed module containing a partial implementation of the simple-streams interface has been included. (thanks to Rudi Schlatte) * A contributed module implementing the RFC1321 Message Digest Algorithm, known as MD5, has been included. * minor incompatible change: The :NEGATIVE-ZERO-IS-NOT-ZERO feature no longer has any effect, as the code controlled by this feature has been deleted. (As far as we know, no-one has ever built using this feature, and its semantics were confused in any case). * minor incompatible change: As a consequence of making SLOT-EXISTS-P work on conditions (as required by the ANSI specification), SLOT-VALUE, (SETF SLOT-VALUE) and SLOT-BOUNDP likewise have the expected behaviour on conditions. Users should note, however, that such behaviour is not required by the ANSI specification, and so use of this behaviour may render their code unportable. * fixed some bugs revealed by Paul Dietz' test suite: ** the GENERIC-FUNCTION type is no longer disjoint from FUNCTION types. ** &ENVIRONMENT parameter in macro lambda list is bound first. ** SXHASH on condition objects no longer returns NIL. ** :ALLOCATION :CLASS slots are better treated; their values are updated on class redefinition, and initforms inherited from superclasses are applied. ** REMOVE-METHOD returns its generic function argument even when no method was removed. ** SHARED-INITIALIZE now initializes the values of the requested slots, including those with :ALLOCATION :CLASS. ** ALLOCATE-INSTANCE now works on structure classes defined via DEFSTRUCT (and not just by those from DEFCLASS :METACLASS STRUCTURE-CLASS). ** SLOT-EXISTS-P now works on conditions, as well as structures and CLOS instances. ** MAKE-LOAD-FORM now has the required methods on STRUCTURE-OBJECT, CONDITION and STANDARD-OBJECT. ** MAKE-LOAD-FORM-SAVING-SLOTS no longer returns a special keyword, and now implements the SLOT-NAMES argument. ** methods with &OPTIONAL arguments no longer allow too many arguments to be passed in the call without error. ** DEFGENERIC now checks that the :ARGUMENT-PRECEDENCE-ORDER option is consistent with the required arguments of the generic function lambda list. * bug fix: REQUIRE accepts a string designator. (Thanks to Antonio Martinez.) * bug fix: SB-MOP:DIRECT-SLOT-DEFINITION-CLASS and SB-MOP:EFFECTIVE-SLOT-DEFINITION-CLASS now have the specified-by-AMOP lambda list of (CLASS &REST INITARGS). * bug fix: The compiler now checks for duplicated variables in macro lambda lists. * bug fix: SETQ on globals returns the correct value. * fixed bug 47.d: (DEFGENERIC IF (X)) now signals a PROGRAM-ERROR, not a COMPILER-ERROR (followed by some other strange error on choosing the CONTINUE restart). * bug fix: make.sh and friends are now more consistent in the way that they look for GNU "make". -
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sbcl_0_8alpha_0
589f841f · ·changes in sbcl-0.8alpha.0 relative to sbcl-0.7.14 * experimental native threads support (on x86 Linux >=2.4 only). This is not compiled in by default: you need to add :SB-THREAD to the target features. See the "Beyond ANSI" chapter of the manual for details. * fix for longstanding nonANSIism: The old distinction between CL:CLASS objects and SB-PCL:CLASS objects has been eliminated. The return value from CL:FIND-CLASS is now a CLOS class, and likewise that of CL:CLASS-OF; CL:BUILT-IN-CLASS, CL:STRUCTURE-CLASS and CL:STANDARD-CLASS name CLOS classes. * An interface to the MetaObject Protocol, as described in Kiczales, des Rivieres and Bobrow's "The Art of the Metaobject Protocol", MIT Press, 1991, is available from the SB-MOP package. * incompatible change: the SB-PCL package should now be considered a private implementation detail, and no longer a semi-private MOP interface. * minor incompatible change: due to rearrangement for threads, the control stack and binding stack are now allocated at arbitrary addresses instead of being hardcoded per-port. Users affected by this probably have to be doing advanced things with shared libraries, and will know who they are. * minor incompatible change: Previously, all --eval forms used were processed with READ before any of them were processed with EVAL. Now each --eval form is processed with both READ and EVAL before the next --eval form is processed. (Thus package operations like sbcl --eval "(defpackage :foo)" --eval "(print 'foo::bar)" now work as the user might reasonably expect.) * minor incompatible change: *STANDARD-INPUT* is now only an INPUT-STREAM, not a BIDIRECTIONAL-STREAM. (thanks to Antonio Martinez) * minor incompatible change: Y-OR-N-P is now character-oriented, not line oriented. Also, YES-OR-NO-P now works without errors. (thanks to Antonio Martinez) * sb-aclrepl module improvements: an integrated inspector, added repl features, and a bug fix to :trace command. * Known functions, which cannot be open coded by the backend, are considered to be able to check types of their arguments. (fixing a bug report by Nathan J. Froyd) * fixed a bug in computing method discriminating functions: It is now possible to define methods specialized on classes which have forward-referenced superclasses. (thanks to Gerd Moellmann) * fixed evaluation order in optional entries (reported by Gilbert Baumann) * SB-MOP:ENSURE-CLASS-USING-CLASS now takes its arguments in the specified-by-AMOP order of (CLASS NAME &REST ARGS &KEY). * SB-MOP:COMPUTE-EFFECTIVE-SLOT-DEFINITION now takes the required-by-AMOP NAME argument, as well as CLASS and DIRECT-SLOT-DEFINITIONS. (thanks to Kevin Rosenberg) * fixed bug 20: DEFMETHOD can define methods using names that are not the proper names of classes to designate class specializers. * bug fix: INTERACTIVE-STREAM-P now works on streams associated with Unix file descriptors, instead of blowing up. (thanks to Antonio Martinez) * Garbage collection refactoring: user-visible change is that a call to the GC function during WITHOUT-GCING will not do garbage collection until the end of the WITHOUT-GCING. If you were doing this you were probably losing anyway. * fixed bug in MEMBER type: (MEMBER 0.0) is not the same as (SINGLE-FLOAT 0.0 0.0), because of the existence of -0.0 which is TYPEP the latter but not the former. * The compiler issues a full WARNING for calls to undefined functions with names from the CL package. * MAP-INTO for a vector destination is open coded. (reported by Brian Downing on c.l.l) * bug fix: the long form of DEFINE-METHOD-COMBINATION now accepts a documentation string. * fixed some bugs revealed by Paul Dietz' test suite: ** COPY-ALIST now signals an error if its argument is a dotted list. ** Condition slots are now accessed more correctly in the presence of multiple initargs for a given slot. ** The USE-VALUE, CONTINUE and STORE-VALUE functions now correctly exclude restarts of the same name associated with a different condition. ** DEFCLASS of forward-referenced classes with another forward-referenced class in the superclasses list no longer causes an error. ** Condition slots are now initialized once each, not multiple times. (thanks to Gerd Moellmann) ** CONVERT-MORE-CALL failed on a lambda list (&KEY). (thanks to Gerd Moellmann) ** &WHOLE and &REST arguments in macro lambda lists are patterns. ** NSET-EXCLUSIVE-OR does not return extra elements when its arguments contain duplicated elements. ** RESTART-CASE understands local macros. ** RESTART-CASE associates exactly its own restarts with a condition. ** ENDP in safe mode checks its argument to be of type LIST. ** COPY-SYMBOL in a threaded build no longer fails when the symbol in question is unbound. ** Optimized MAKE-INSTANCE functions no longer cause internal assertion failures in the presence of duplicate initargs. ** SLOT-MAKUNBOUND returns the instance acted upon, not NIL. ** Side-effectful :DEFAULT-INITARGS have their side-effects propagated even in the ctor optimized implementation of MAKE-INSTANCE. ** :ALLOW-OTHER-KEYS NIL is now accepted in an initarg list.