X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=4eceb3bc76d956a7b57e84c9fdf3f55a4b390760;hb=4d9ce212ecdef5af8356873b56f88c72c4ed113d;hp=5ecb0d5a6bf4ffaa5ad2fa47285a10b6767896fc;hpb=f4b2df30d28c890bda36fdeea2c2243de09982eb;p=sbcl.git diff --git a/NEWS b/NEWS index 5ecb0d5..4eceb3b 100644 --- a/NEWS +++ b/NEWS @@ -1,4 +1,532 @@ +;;;; -*- coding: utf-8; -*- +changes in sbcl-0.9.4 relative to sbcl-0.9.3: + * enhancement: SBCL on MIPS platforms now has a much larger dynamic + space for its heap. (thanks to Thiemo Seufer) + * bug fix: discriminating functions for generic function classes + with non-standard methods for COMPUTE-APPLICABLE-METHODS no longer + make invalid assumptions about method precedence order. (reported + by Bruno Haible) + * optimizations: REMOVE-DUPLICATES now runs in linear time on + lists in some cases. This partially fixes bug 384. + * flush all standard streams before prompting in the REPL and the + debugger + * eof selects abort in the debugger + * minor incompatible change: *INVOKE-DEBUGGER-HOOK* is run before + *DEBUGGER-HOOK* => *DEBUGGER-HOOK* is not run when the debugger + is disabled + * bug fix: degree sign () could not be encoded in KOI8-R. + +changes in sbcl-0.9.3 relative to sbcl-0.9.2: + * New feature: Experimental support for bivalent streams: streams + opened with :element-type :default now allow character and binary + (unsigned-byte 8) I/O + * Support for the koi8-r external format. (thanks to Ivan Boldyrev) + * Bug fix: OPEN no longer fails when *PRINT-READABLY* is T. (thanks + to Zach Beane) + * bug fix: no more highly sporadic "couldn't check whether ~S is + readable" when reading a stream and an interrupt hits in the middle + of a select system call + * compiler better recognizes complex arrays (reported by Eduardo + Muñoz) + * bug fix: out-of-line SB-SYS:FOREIGN-SYMBOL-ADDRESS did not work + for variables on SBCL built with linkage-tables. (reported by Luis + Oliveira) + * various error reporting improvements. + * optimizations: LOGNOR on fixnums is improved in the MIPS backend. + (Thanks to Thiemo Seufer) + * bug fix: nested reader invokations work correctly + * bug fix: it is possible to have simultaneous references to foreign + code and foreign data with the same name. + * threads + ** added x86-64 support + ** incompatible change: the threading api now works with thread + objects instead of thread ids + ** bug fix: threads are protected from signals and interruption when + starting up or going down + ** bug fix: a race where an exiting thread could lose its stack to gc + ** bug fix: don't halt on infinite error in threads if possible + ** fixed numerous gc deadlocks introduced in the pthread merge + ** bug fix: fixed thread safety issues in read and print + ** bug fix: debugger doesn't hang on session lock if interrupted at + an inappropriate moment + ** bug fix: run-program is now thread safe(r) + ** bug fix: inner with-recursive-lock no longer releases the mutex + * fixed a bug in (DECODE-UNIVERSAL-TIME 0) (reported by Paul Dietz) + * fixed some bugs revealed by Paul Dietz' test suite: + ** TYPE-ERRORs from signalled by COERCE now have DATUM and + EXPECTED-TYPE slots filled. + ** MULTIPLE-VALUE-SETQ always returns the primary value of the + values form. + ** MAKE-CONDITION accepts classes as type-designators. + ** COMPILE may never return NIL. + ** ENCODE-UNIVERSAL-TIME now guards against times out of Unix's + range before calling Unix time functions + +changes in sbcl-0.9.2 relative to sbcl-0.9.1: + * numerous signal handling fixes to increase stability + * Support for EUC-JP external format. (thanks to NIIMI Satoshi) + * minor incompatible change: we now correctly canonize default + initargs, making them be a list of (INITARG INITFORM INITFUNCTION) + as per the MOP, rather than the historical (INITARG INITFUNCTION + INITFORM). (reported by Bruno Haible) + * new feature: WITH-COMPILATION-UNIT now accepts a non-standard + :SOURCE-PLIST option. See (DOCUMENTATION #'WITH-COMPILATION-UNIT T) + for more information. + * TRUENAME and PROBE-FILE now correctly resolve symlinks even if the + pathname is a directory pathname. + * SB-SPROF now works (more) reliably on non-GENCGC platforms. + * dynamic space size on PPC has been increased to 768Mb. (thanks to + Cyrus Harmon) + * SB-MOP:ENSURE-CLASS-USING-CLASS now accepts a class as the + :METACLASS argument in addition to a class name. (reported by + Bruno Haible for CMUCL, patch for CMUCL by Gerd Moellmann) + * RESTART-CASE can now be wrapped around CALL-METHOD forms. + (reported by Bruno Haible; patch from Gerd Moellmann) + * bug fix: sbcl runtime can now be compiled with gcc4 (thanks to + Sascha Wilde) + * bug fix: more cleanups to the floating point exception handling on + x86-64 (thanks to James Knight) + * bug fix: the compiler does not try to constant fold calls of + COERCE and BIT-* functions when they return freshly constructed + objects. (reported by Nikodemus Siivola and Paul Dietz) + * optimization: improved the MIPS versions of generic (in the + generic sense) arithmetic routines. (thanks to Thiemo Seufer) + * optimization: direct conversion of (unsigned-byte 32) to floats on + the PowerPC platform. + * optimization: structure instances with raw slots now use less + memory, and probably show better memory locality. (thanks to + David Lichteblau) + * optimization: DYNAMIC-EXTENT declarations for lists and closures + are treated as requests for stack allocation on the x86-64, + Alpha-32, PPC and SPARC platforms. + * contrib improvement: it's harder to cause SOCKET-CLOSE to close() + the wrong file descriptor; implementation of SOCKET-OPEN-P. + (thanks to Tony Martinez) + * threads + ** gcing a dead thread can no longer lead to lockups + ** threads block signals until they are set up properly + ** errno is no longer shared by threads + ** interrupt-thread restores the eflags register on x86 + ** fixed some lockups due to gc/thread interaction + * fixed some bugs revealed by Paul Dietz' test suite: + ** invalid dotted lists no longer raise a read error when + *READ-SUPPRESS* is T + ** signal an error if a symbol that names a declaration is used + as the name of a type, or vice versa + ** allow using the (declare (typespec var*)) abbreviation for + (declare (type typespec var*)) with all type specifiers + ** circularity detection works properly with PPRINT-LOGICAL-BLOCK + ** always return NIL from PPRINT-POP when OBJECT is NIL + ** don't signal errors when pretty-printing malformed LABELS, + FLET or MACROLET forms + ** declarations in a DOLIST body are also in scope for the + DOLIST return-form + ** COMPILE-FILE accepts all pathname designators as INPUT-FILE + and OUTPUT-FILE + ** the ELEMENT-TYPE keyword argument to WITH-OUTPUT-STREAM is + always evaluated + +changes in sbcl-0.9.1 relative to sbcl-0.9.0: + * fixed cross-compiler leakages that prevented building a 32-bit + target with a 64-bit host compiler. + * fixed a bug in CLOSE :ABORT T: no longer attempts to remove files + opened with :IF-EXISTS :OVERWRITE. + * fixed bug 281: error for an invalid qualifier in a short-form method + combination method is not signalled until the faulty method is called. + * bug fix: iteration variable type inferrer failed to deal with open + intervals. (reported by Alan Shields) + * bug fix: dynamically loading (via LOAD-SHARED-OBJECT or similar) + "frameworks" on Mac OS X no longer causes an EXC_BAD_ACCESS if two + or more runtime options were provided to the sbcl binary. + * compiled code is not steppable if COMPILATION-SPEED >= DEBUG. + * contrib improvement: implement SB-POSIX:MKSTEMP (Yannick Gingras) + * optimization: there's now a fast-path for fixnum arguments in the + generic subtraction routines on x86/x86-64. (Thanks to Lutz Euler) + * optimization: the code generated on x86-64 is more compact thanks + to not outputting unneccessary prefix bytes. (Thanks to Lutz Euler) + * bug fix: floating-point exception handling now partly works on + x86-64. (Thanks to James Knight) + * improvement to the MIPS backend from Thiemo Seufer: C-style + 64-bit long long arguments and return values to alien functions + are now supported. + * fixed some bugs revealed by Paul Dietz' test suite: + ** the type-error signalled from WARN has a filled-in DATUM slot. + ** the type-error required when a stream is not associated with + a file has the stream as its datum. + ** type-errors on single-floats on x86-64 no longer have + :INVALID-OBJECT as the datum + ** the type-errors signalled for invalid function names now have + a correct expected type + ** (SETF (DOCUMENTATION ... 'STRUCTURE)) no longer signals an error + for structures defined with a :TYPE. Documentation strings for + typed structures are no longer immediately discarded + ** FILE-STRING-LENGTH and STREAM-EXTERNAL-FORMAT now work on + broadcast streams and synonym streams. FILE-LENGTH now also works + on broadcast streams. + +changes in sbcl-0.9.0 relative to sbcl-0.8.21: + * incompatible change: the --noprogrammer option, deprecated since + version 0.7.5, has been removed. Please use the equivalent + --disable-debugger option instead. + * incompatible change: finalizers and *AFTER-GC-HOOKS* are now run with + interrupts enabled. + * incompatible change: support for *BEFORE-GC-HOOKS* (that have been + inoperational for a while now) has been completely removed. + * null lexical environments are now printed as #, + significantly reducing the amount of clutter in typical backtraces. + * documentation on weak pointers, finalization, and after GC hooks + has been added to the manual. + * optimization: REPLACE on declared (UNSIGNED-BYTE 8) vectors, as well + as other specialized array types, is much faster. SUBSEQ and + COPY-SEQ on such arrays have also been sped up. + * optimization: EQL is now more efficient when at least other argument + is known to be of type (OR FIXNUM (NOT NUMBER)). + * fixed bug: the runtime is now less vulnerable to changes in the + size of the SBCL object on OS X, and virtual memory is reserved for + all spaces that need to be at a fixed address. + * fixed bug: finalizers are now thread-safe. (thanks to Gabor Mellis) + * fixed bug: finalizers and after GC hooks that cause consing are now + safe. + * fixed bug: compiler error messages and summaries are now printed to + *ERROR-OUTPUT*, not *STANDARD-OUTPUT*. + * fixed inference of the upper bound of an iteration variable. + (reported by Rajat Datta). + * fixed bug 211e: calling local functions with duplicated constant + keyword argument no longer causes a bogus style warning about an + unused variable. + * fixed bug 305: INLINE/NOTINLINE declaration no longer causes local + ftype declaration to be disregarded. (reported by Dave Roberts) + * fixed bug 373: caused by erronous compilation of references to alien + variables in the runtime on ppc/darwin. + * fixed bug 376: CONJUGATE type deriver. + * fixed infinite looping of ALIEN-FUNCALL, compiled with high DEBUG. + (reported by Baughn on #lisp) + * a cross-compiler bug on non-x86 platforms has been identified and + fixed. (thanks to Bruno Haible) + * improvements to the MIPS runtime code for increased stability. + (thanks to Thiemo Seufer) + * increased the maximimum compact environment size to allow + purify on images with large amounts of functions. (thanks to Cyrus Harmon) + * partial workaround for bug 135: don't name the function we're + calling for hairy cases of EVAL, so as not to accumulate one environment + entry per call to EVAL. (reported by Kevin Reid) + * improvements to the x86-64 disassembler. (thanks to Lutz Euler) + * optimization: type testing for non-vector arrays should be faster. + * fixed TRACE :ENCAPSULATE NIL, added support for :ENCAPSULATE NIL + on x86-64 + * bug fix: setting 31st element of a bit vector to zero did not work + on Alpha-32. + * bug fix: redefining a class definition which failed due to a + previous accessor / function clash now works (but see BUGS entry + #380 for more problems in this area). (thanks to Zach Beane) + * the long form of DEFINE-METHOD-COMBINATION disables method group + checking when given a single method group with pattern *. (thanks + to Wendall Marvel) + * on x86 compiler supports stack allocation of results of simple + calls of MAKE-ARRAY, bound to variables, declared DYNAMIC-EXTENT. + * support for building and running on Mac OS X 10.4 "Tiger" has been added + ** Binaries built on Tiger will not run on 10.2 "Jaguar" currently + * fixed some bugs related to Unicode integration: + ** the restarts for recovering from input and output encoding + errors only appear when there is in fact such an error to + handle. + * fixed some bugs revealed by Paul Dietz' test suite: + ** MISC.549 and similar: late transformation of unsafe type + assertions into derived types caused unexpected code + transformations. + ** SCALE-FLOAT type deriver is less wrong. + ** type derivers for EXP, LOG and similar functions compute result + types for complex arguments better. + ** (MISC.563) CONJUGATE type deriver works for very restricted + complex types. + ** out-of-line type testers for character strings are available. + ** EQUAL compiler transform understands specialness of objects + of type BIT-VECTOR. + ** accessing double-floats stored on the stack now works on x86-64. + ** debugger internals could sometimes create invalid lispobjs, + resulting in GC crashes. + ** MISC.548: type check weakening can convert required type into + optional. + ** initialization forms for bindings are not in scope of free special + declarations. + +changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20: + * incompatible change: thread support for non-NPTL systems has + been removed - locking is buggy and unreliable. A threaded + SBCL build will now warn at startup and refuse to create + new threads, unless futex support is detected in the kernel + * incompatible change: the top level REPL now has only an ABORT + restart associated with it, not TOPLEVEL and ABORT as it used to. + TOP and TOPLEVEL are now available as debugger commands for + returning to the top level. + * incompatible change: forms evaluated in the REPL now use the + global optimization policy. + * incompatible change: user- and system-initialization files are + no longer processed with LOAD, but by READ and EVAL; hence the + global optimization policy, startup package, readtable, etc, + can be set by them. + * The .fasl file format number has been incremented because of + various incompatible changes. + * internal entry point details and argument counts no longer appear + in backtraces unless explicitly requested by setting + SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS*. + * built-in and standard functions no longer have names like "top + level local call to FOO". + * fixed bug 32: functions defined in non-null lexical environments + now have more legible printed representation + * fixed bug 33: functions defined in non-null lexical environemnts + are now more amenable to inspection by INSPECT. + * workaround for bug 354: XEPs no longer appear in backtraces unless + explicitly requested. + * fixed bug: receiving the signal which results from attempting to + write to mprotect()ed memory (SIGSEGV on Linux and some *BSDs, + SIGBUS on other *BSDs) on architectures where the C stack is also + the Lisp stack (x86 and x86-64) from foreign code no longer leads + to debugger confusion or wild instability. (reported by Cheuksan + Wang) + * fixed bug: COUNT and EQUAL no longer issue compiler efficiency + notes when operating on objects known to be SIMPLE-BIT-VECTORs. + (reported by Lutz Euler) + * fixed bug: (TYPEP X '(MEMBER ...)) no longer returns a list in + compiled code. (reported by Paul Dietz) + * fixed bug 276b: mutating with MULTIPLE-VALUE-SETQ a binding of a + specialized parameter to a method to something that is not TYPEP + the specializer is now possible. + * fixed bug: the MAKE-INSTANCE optimization is now correct in the + face of package deletion. + * fixed bug: LOAD should bind *LOAD-PATHNAME* to the merged + pathname. (reported by David Tolpin on c.l.l) + * contrib improvement: the SB-SIMPLE-STREAMS contrib now defines + STRING-SIMPLE-STREAM and FILE-SIMPLE-STREAM as subclasses of + STRING-STREAM and FILE-STREAM, respectively. + * contrib improvement: SB-INTROSPECT handles more of SLIME's needs + than previously; in addition, its test suite is now run on build. + (thanks to Luke Gorrie) + * a more robust x86-64 disassembler. (thanks to Lutz Euler) + * optimization: added a immediate representation for single-floats + on x86-64 + * fixed some bugs revealed by Paul Dietz' test suite: + ** MISC.564: defined out-of-line version of %ATAN2 on x86. + ** attempting to create a package with a colliding nickname causes + correctable errors to be signalled. + ** MISC.572-574: :START1 and :START2 broken for simple-base-strings. + ** several x86-64 backend bugs related to sign-extension of immediate + operands. + +changes in sbcl-0.8.20 (0.9alpha.0?) relative to sbcl-0.8.19: + * fixed inspection of specialized arrays. (thanks to Simon Alexander) + * fixed disassembly of SHLD and SHRD on x86. (thanks to David + Lichteblau) + * fixed loading of multiply forward-referenced layouts. + (thanks to Cheuksan Wang) + * fixed bug 7: less verbose COMPILE-FILE output. Additionally, the + output is now directed to *STANDARD-OUTPUT* as specified by ANSI. + (see COMPILE-FILE documentation for details of :PRINT option) + * fixed bugs 19 and 317: fixed-format floating point printing is + more accurate. This also fixes a bug reported by Adam Warner + related to the ~@F format directive. + * fixed bug 371: bignum print/read inconsistency. (thanks to Harald + Hanche-Olsen) + * fixed bug: SET-SYNTAX-FROM-CHAR correctly shallow-copies a + dispatch table if the from-char is a dispatch macro character. + * fixed bug: COUNT and EQUAL on bit vectors with lengths divisible + by the wordsize no longer ignore the last word. (reported by Lutz + Euler) + * fixed bug in type checking of dynamic-extent variables. (reported + by Svein Ove Aas) + * optimization: sequence traversal functions use their freedom to + coerce function designators to functions. + * optimization: code with many calls to CLOS methods specialized on + CLOS classes has had redundant type checks removed. + * optimization: added declarations to speed up operations that access + the internal character database (for example STRING-UPCASE) + * optimization: comparison operations between floats and sufficiently small + fixnums no longer create extra rationals + * fixed some bugs related to Unicode integration: + ** portions of multibyte characters at the end of buffers for + character-based file input are correctly transferred to the + start of the buffer at the next read. + ** COMPILE-FILE now respects any EXTERNAL-FORMAT argument given, + passing it through to OPEN. + ** LOAD on source files likewise passes any EXTERNAL-FORMAT + argument given to internal calls to OPEN. + ** the built-in comment readers (introduced by character sequences + ";" and "#|") are more forgiving to encoding errors; they will + STYLE-WARN and then attempt to resync the stream at a character + boundary. (thanks to Teemu Kalvas) + * fixed some bugs in the x86-64 port: + ** Negative short int return values from c-calls are sign-extended + correctly. + ** The stack is aligned to 16-bytes for c-calls, as required by + the ABI. (thanks to Cheuksan Wang) + ** The disassembler understands more x86-64. (thanks to Cheuksan Wang) + ** The regression tests use SB-ALIEN:INT instead of SB-ALIEN:INTEGER + for enums. (thanks to Vincent Arkesteijn) + ** Multiple small optimizations and bugfixes for floating point + operations. + * fixed some bugs revealed by Paul Dietz' test suite: + ** Space, Tab, Linefeed, Return and Page have the invalid + secondary constituent character trait. + ** SET-SYNTAX-FROM-CHAR correctly copies multiple-escape character + syntax. + ** WITH-INPUT-FROM-STRING should only update the index place on + normal termination. + ** Pretty-printing backquoted forms when *PRINT-CIRCLE* is true + works more reliably. + ** Bit-array operations (BIT-AND and similar) worked incorrectly + with one-dimensional arrays with fill pointers. + ** TYPE-OF failed on a complex with an integer realpart and a + RATIO imagpart. + ** compiler failure during type inference for the code of form + (IF (EQL X (THE ...)) ...) (MISC.535). + +changes in sbcl-0.8.19 relative to sbcl-0.8.18: + * new port: SBCL now works in native 64-bit mode on x86-64/Linux + platform. The port supports 61-bit fixnums, large memory spaces + and reloading shared object files. + * enhancement: saving cores with foreign code loaded is now + supported on ppc/Darwin in addition to the previously supported + platforms. + * enhancement: the statistical profiler now walks deeper into the + call stack for more meaningful call-graphs and accrued time + reports (x86/x86-64 only). It also now reports time spent in + foreign functions. + * enhancement: it is now possible to trace most individual methods + of a generic function in addition to tracing the generic function + itself. + * bug fix: invalid :DEFAULT-INITARGS are detected in compiled calls + to MAKE-INSTANCE. + * bug fix: defaulted initargs are passed to INITIALIZE-INSTANCE and + SHARED-INITIALIZE methods from compiled calls to MAKE-INSTANCE. + * bug fix: COERCE to (COMPLEX FLOAT) of a complex number no longer + produces an error. (thanks to Vincent Arkesteijn) + * bug fix: NAMESTRING on pathnames with :WILD components in their + directories works correctly. (thanks to Artem V. Andreev) + * fixed bug 125: compiler preserves identity of closures. (reported + by Gabe Garza) + * bug fixed: functions with &REST arguments sometimes failed with + "Undefined function" when compiled with (DEBUG 3). (reported by + Robert J. Macomber) + * bug fix: overflow during compiling of setting element of a bit + vector with constant index and value. (reported by Timmy Douglas) + * build fix: fixed the dependence on *LOAD-PATHNAME* and + *COMPILE-FILE-PATHNAME* being absolute pathnames. + * on x86 compiler partially supports stack allocation of dynamic-extent + closures. + * GO and RETURN-FROM do not check the extent of their exit points + when compiled with SAFETY 0. + * fixed some bugs related to Unicode integration: + ** encoding and decoding errors are now much more robustly + handled; it should now be possible to recover even from invalid + input or output to the terminal. (thanks to Teemu Kalvas) + ** provided a first cut at implementing STRING-TO-OCTETS and + OCTETS-TO-STRING. (thanks to Robert J. Macomber) + ** altered the SB-MD5 contributed module slightly, changing the + interface just enough for it to be supportable for builds where + lisp characters are not eight bits. + * fixed some bugs revealed by Paul Dietz' test suite: + ** the FORMATTER-generated functions for ~V[ conditionals require + the correct number of arguments. + ** READ-FROM-STRING returns the mandated second value when applied + to displaced strings. + ** the #\Rubout and #\Backspace characters are treated as invalid + constituent characters by the tokenizer. + +changes in sbcl-0.8.18 relative to sbcl-0.8.17: + * new feature: reloading changed shared object files with + LOAD-SHARED-OBJECT now causes the new definitions to take effect. + * new feature: references to foreign variables and functions + can now be compiled and loaded before the corresponding shared + object file is loaded, as long as the foreign definitions are + available at runtime. + * Solaris 10 (aka SunOS 5.10) on the SPARC platform is now + supported. (thanks to Dan Debertin) + * SB-ALIEN enums can now be represented in Lisp by any symbols, not + just keywords. (thanks to Vincent Arkesteijn) + * fixed bug #331: structure-class instances corresponding to + DEFSTRUCT forms are now created eagerly. + * fixed bug #345: backtraces from calls to undefined functions work + on x86 as well. Related bug #61 is now also partially fixed on x86 + (backtraces from throws to unknown catch tags.) + * bug fix: lambda-list parsing is now stricter vrt. order and number + of lambda-list keywords. + * bug fix: as specified by AMOP, an error is signalled if a + class-option appears multiple times in a DEFCLASS form. (reported + by Bruno Haible) + * bug fix: RANDOM can be compiled when the compiler derives the type + of its numeric argument as a disjoint set of small integers. + (reported by Paul Dietz) + * bug fix: starting a core saved with shared objects loaded when + those objects are not available no longer causes threaded SBCL to + hang. (reported by Sean Ross) + * bug fix: evaluated FUNCTION no longer bypasses encapsulation (eg. + TRACE). + * bug fix: (SETF MACRO-FUNCTION) now accepts an optional environment + argument, which must always be NIL. (reported by Kalle Niemitalo) + * bug fix: printing 1.0d+23 no longer results in an error. + (reported by Rolf Wester for CMUCL; bug fix from Raymond Toy) + * bug fix: structure slot setters preserve evaluation order. (thanks + to Gabor Melis) + * fixed some bugs related to Unicode integration: + ** RUN-PROGRAM can allow its child to take input from a Lisp + stream. (reported by Stefan Scholl) + ** ASDF-INSTALL successfully downloads .tar.gz files in all + locales. (reported by Ken Causey) + * fixed some bugs revealed by Paul Dietz' test suite: + ** INCF, DECF and REMF evaluate their place form as specified in + CLtS 5.1.3. + ** FORMATTER expands ~{ ~} iteration directives with V or # + parameters correctly. + ** FORMATTER deals with the ~@[ ~] conditional directive where the + consequent uses no arguments correctly. + ** the system has a partial understanding of the (COMPLEX RATIO) + type specifier. + ** UPGRADED-COMPLEX-PART-TYPE obeys the lattice upgrading rules + required. + changes in sbcl-0.8.17 relative to sbcl-0.8.16: + * new feature: a build-time option (controlled by the :SB-UNICODE + keyword feature, enabled by default) for building the system with + support for the entire 21-bit character space defined by the + Unicode consortium. + * new feature: the system now has rudimentary external-format + support; the primary user-visible change at this time is that + characters with the high bit set (such as lower-case-e-acute) will + print correctly to a terminal in a UTF-8 environment. + * minor incompatible change: BASE-CHAR no longer names a class; + however, CHARACTER continues to do so, as required by ANSI. + * minor incompatible change: SB-DEBUG:*DEBUG-PRINT-FOO* variables + are no longer supported, and SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST* + has been moved to the SB-EXT package (temporarily re-exported from + SB-DEBUG). + * minor incompatible change: SB-C::*COMPILER-ERROR-PRINT-FOO* variables + are no longer supported: use SB-EXT:*COMPILER-PRINT-VARIABLE-ALIST* + instead. + * fixed bug #351: better error-handlind and reporting for malformed + LET and LET* forms. + * fixed bug #350: bignum-printing is now more memory-efficient, + allowing printing of very large bignums, eg. (expt 2 10000000). + (reported by Bruno Haible) + * fixed bug #302: better primitive-type selection for intersection + types. + * fixed bug #308: non-graphic characters now all have names, as + required. (reported by Bruno Haible) + * bug fix: redefining a class with different superclasses now correctly + removes it from the direct-subclasses of its previous superclasses. + (reported by David Morse) + * bug fix: (SETF FIND-CLASS) using a FORWARD-REFERENCED-CLASS as the + new value now works. (reported by Bruno Haible) + * bug fix: correct canonicalization of multiple non-standard slot + options in DEFCLASS as per AMOP 5.4.2. (reported by Bruno Haible) + * bug fix: SB-MOP:CLASS-PROTOTYPE now signals an error if the class + is not yet finalized, as required by AMOP. (reported by Bruno Haible) + * bug fix: SB-MOP:ALLOCATE-INSTANCE method for instances of BUILT-IN-CLASS + now exists, an signals an error. + * bug fix: duplicate LOOP variable bindings now signal PROGRAM-ERROR + during macroexpansion for non-iteration variables as well. (reported + by Bruno Haible for CMUCL) + * bug fix: Cyclic structures and unprintable objects in compiler + messages no longer cause errors. (reported by Bruno Haible) * bug fix: READ, READ-PRESERVING-WHITESPACE, READ-DELIMITED-LIST, and READ-FROM-STRING all now return a primary value of NIL if *READ-SUPPRESS* is true. (reported by Bruno Haible for CMUCL) @@ -12,9 +540,35 @@ changes in sbcl-0.8.17 relative to sbcl-0.8.16: name conflict situations in CLHS 11.1.1.2.5, and provide a restart permitting resolution in favour of any of the conflicting symbols. (reported by Bruno Haible for CMUCL) + * bug fix: EQUAL compiler optimizations is less aggressive on + strings which can potentially compare true despite having distinct + specialized array element types. + * bug fix: unit enumerations can be defined without dividing by + zero. (thanks to Vincent Arkesteijn) + * FORMAT compile-time argument count checking has been enhanced. + (report from Bruno Haible for CMUCL) + * a partial workaround for the bug 262: the compiler does not try to + inline-expand a local function doing RETURN-FROM from a deleted + BLOCK. (thanks to Peter Denno for the bug report and to David + Wragg for the simple test case) * fixed some bugs revealed by Paul Dietz' test suite: ** RENAME-PACKAGE allows all package designators as new package names. + ** constraint propagation and lambda variable substitution are + more cautious in dealing with partially deleted code. + ** compiler sometimes lost reoptimization passes. + ** CERROR, given a condition as condition designator, passes its + remaining arguments to the continue format control without + complaint. + ** Case-altering FORMAT directives work correctly on non-ASCII + characters. + ** The REAL type specifier handles bounds outside the floating + point ranges without signalling FLOATING-POINT-OVERFLOW. + ** Functions with IR1-transformations can create intercomponent + references to global functions. + ** NIL parameter to the FORMAT directive ~^ means `unsupplied + parameter'. + ** FORMAT ~R treats a nil value for its first parameter correctly. changes in sbcl-0.8.16 relative to sbcl-0.8.15: * enhancement: saving cores with foreign code loaded is now