X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=27ca9108543f3cf756a973497ae5309590239e83;hb=f52d22d071c68f2daa318a7c0477358145bf22c6;hp=c4b3346145d65a1c68d1844cf330dfd53f601e39;hpb=56fd7d95cfadb61a353e8999111a0e2e6a94842b;p=sbcl.git diff --git a/NEWS b/NEWS index c4b3346..27ca910 100644 --- a/NEWS +++ b/NEWS @@ -1,14 +1,112 @@ ;;;; -*- coding: utf-8; -*- +changes in sbcl-1.0.22 relative to 1.0.21: + * minor incompatible change: LOAD-SHARED-OBJECT no longer by default looks + for the shared object in the current directory, but passes the native + namestring of the designated pathname to the operation system's shared + object loading function as-it. + * minor incompatible change: --disable-debugger toplevel option now takes + effect before processing of initialization files and --eval or --load + options. + * new feature: new commandline argument: --script, which supports + shebang lines. See documentation for details. (based on work by + Kevin Reid) + * new feature: SAVE-LISP-AND-DIE can save current values of + --dynamic-space-size and --control-stack-size in the executable core, + causing it to skip normal runtime option processing. See documentation + for details. (thanks to Zach Beane) + * enhancement: inoccous calls to EVAL or generic functions dispatching + on subclasses of eg. STREAM no longer cause compiler notes to appear. + * enhancement: the system no longer resignals errors from --load and + --eval toplevel arguments as SIMPLE-ERRORS, which caused restarts + associated with the original error to be lost. (thanks to Ariel + Badichi) + * enhancement: :DONT-SAVE keyword argument has been added to + LOAD-SHARED-OBJECT for controlling interaction with + SAVE-LISP-AND-DIE, and UNLOAD-SHARED-OBJECT can be used to undo + the effects of an earlier LOAD-SHARED-OBJECT call. + * bug fix: ADJUST-ARRAY on multidimensional arrays used bogusly give + them a fill pointer unless :DISPLACED-TO or :INITIAL-CONTENTS were + provided. (reported by Cedric St-Jean) + * bug fix: circularity handling in the reader did not treat raw + structure slots correctly. (reported by Cedric St-Jean) + * bug fix: SERVE-EVENT occasionally signaled an error about bogus + file descriptors when there were none. + * bug fix: DEFINE-COMPILER-MACRO support of destructuring lambda-lists + was broken. (reporteed by Willem Broekema) + * bug fix: SB-EXT:NATIVE-NAMESTRING on Windows did not work on + pathnames without a directory. + * bug fix: COMPILE-FILE did not warn about undefined variable + references at toplevel, and LOAD of the resulting fasl did + not signal an error. + * bug fix: functions with non-required arguments used to end up with + (SB-C::&OPTIONAL-DISPATCH ...) as their name. + * bug fix: redefining a function with non-required arguments didn't + update the system's knowledge about its call signature properly. + * bug fix: fixed #431; incompatible alien record type redefinitions + are detected and handled. (reported by Neil Haven) + +changes in sbcl-1.0.21 relative to 1.0.20: + * new feature: the compiler is able to track the effective type of a + generic function across method addition and removal. + * new feature: SB-EXT:ATOMIC-INCF allows atomic incrementation of + appropriately typed structure slots without locking. + * new feature: SB-EXT:CALL-WITH-TIMING provides access to timing + information like those gathered by TIME using a programming-friendly + interface. + * new feature: TIME reports time taken even if the form performs a + non-local transfer of control. + * enhancement: reduced conservativism on GENCGC platforms: on + average 45% less pages pinned (measured from SBCL self build). + * bug fix: SB-EXT:COMPARE-AND-SWAP on SYMBOL-VALUE can no longer + mutate constant symbols or violate declaimed type of the symbol. + * bug fix: SB-THREAD:SIGNAL-SEMAPHORE could fail to wakeup threads + sleeping on the semaphore in heavily contested semaphores. + * bug fix: semaphores and condition variables were not interrupt + safe. + * bug fix: SB-THREAD:CONDITION-WAIT doesn't allow waits on mutexes + owned by other threads anymore. + * bug fix: FIND on lists called KEY outside the specified + subsequence. (reported by budden) + * bug fix: LOG doesn't use single-float intermediate results when + given mixed integer and double-float arguments, leading to better + precision. (reported by Bob Felts) + * bug fix: LOG with base zero returned values of inconsistent type. + changes in sbcl-1.0.20 relative to 1.0.19: * minor incompatible change: OPTIMIZE qualities SB-C::STACK-ALLOCATE-DYNAMIC-EXTENT, SB-C::STACK-ALLOCATE-VECTOR, and SB-C::STACK-ALLOCATE-VALUE-CELLS no longer exist. See documentation and SB-EXT:*STACK-ALLOCATE-DYNAMIC-EXTENT* for details. + * documentation: some slot access efficiency guidelines have been + added to the user manual. * optimization: ASSOC-IF, ASSOC-IF-NOT, MEMBER-IF, MEMBER-IF-NOT, RASSOC, RASSOC-IF, and RASSOC-IF-NOT are now equally efficient as ASSOC and MEMEBER. + * optimization: calls to ASSOC, MEMBER, and RASSOC can be transformed + to more efficient EQ-comparison versions more often. + * optimization: enhanced derivation of DOLIST iteration variable type + for constant lists. + * optimization: constant folding of simple (LIST ...) forms as DOLIST + arguments. * optimization: runtime lookup of function definitions can be elided in more cases, eg: (let ((x 'foo)) (funcall foo)). + * optimization: compiler is able to derive the return type of + (AREF (THE STRING X) Y) as being CHARACTER. + * optimization: CLRHASH on empty hash-tables no longer does pointless + work. (thanks to Alec Berryman) + * optimization: REPLACE deftransforms don't punt when :START1 or + :START2 is given + * bug fix: compiling DESTRUCTURING-BIND on constant list arguments + no longer emits a code deletion note. (reported by Andrew + Gasparovic) + * bug fix: bogus odd-number-of-keywords STYLE-WARNINGs from calls to + functions with an odd number of &OPTIONAL arguments, a &REST + argument, and one or more &KEY arguments at the call site. + * bug fix: STYLE-WARNINGs for functions with both &OPTIONAL and &KEY + arguments appeared at call sites as well. + * bug fix: fixed #425; CLOSE drops input buffers from streams, so + READ-LINE &co can no longer read from them afterwards. (reported + by Damien Cassou) * bug fix: fixed #427: unused local aliens no longer cause compiler breakage. (reported by Stelian Ionescu, Andy Hefner and Stanislaw Halik)