(FLOAT 1 DOUBLE-FLOAT-EPSILON)
don't give the right behavior.
-46:
- type safety errors reported by Peter Van Eynde July 25, 2000:
- k: READ-BYTE is supposed to signal TYPE-ERROR when its argument is
- not a binary input stream, but instead cheerfully reads from
- string-input streams, e.g. (MAKE-STRING-INPUT-STREAM "abc").
- [ Bug was reported as "from character streams", but in 0.8.3.10 we
- get correct behaviour from (WITH-OPEN-FILE (i "/dev/zero") (READ-BYTE i)) ]
-
-
60:
The debugger LIST-LOCATIONS command doesn't work properly.
(How should it work properly?)
Raymond Toy comments that this is tricky on the X86 since its FPU
uses 80-bit precision internally.
-120b:
- Even in sbcl-0.pre7.x, which is supposed to be free of the old
- non-ANSI behavior of treating the function return type inferred
- from the current function definition as a declaration of the
- return type from any function of that name, the return type of NIL
- is attached to FOO in 120a above, and used to optimize code which
- calls FOO.
-
124:
As of version 0.pre7.14, SBCL's implementation of MACROLET makes
the entire lexical environment at the point of MACROLET available
* '``(FOO ,@',@S)
``(FOO SB-IMPL::BACKQ-COMMA-AT S)
- b.
- * (write '`(, .ala.) :readably t :pretty t)
- `(,.ALA.)
-
- (note the space between the comma and the point)
+ b. (fixed in 0.8.4.7)
143:
(reported by Jesse Bouwman 2001-10-24 through the unfortunately
classes). This means that at present erroneous attempts to use
WITH-SLOTS and the like on classes with metaclass STRUCTURE-CLASS
won't get the corresponding STYLE-WARNING.
- c. the examples in CLHS 7.6.5.1 (regarding generic function lambda
- lists and &KEY arguments) do not signal errors when they should.
+ c. (fixed in 0.8.4.23)
201: "Incautious type inference from compound types"
a. (reported by APD sbcl-devel 2002-09-17)
all of the arguments are circular is probably desireable).
213: "Sequence functions and type checking"
- a. MAKE-SEQUENCE, COERCE, MERGE and CONCATENATE cannot deal with
- various complicated, though recognizeable, CONS types [e.g.
- (CONS * (CONS * NULL))
- which according to ANSI should be recognized] (and, in SAFETY 3
- code, should return a list of LENGTH 2 or signal an error)
+ a. (fixed in 0.8.4.36)
b. MAP, when given a type argument that is SUBTYPEP LIST, does not
check that it will return a sequence of the given type. Fixing
it along the same lines as the others (cf. work done around
(INTEGERP (CAR (MAKE-SEQUENCE '(CONS INTEGER *) 2)))
can erroneously return T.
-214:
- SBCL 0.6.12.43 fails to compile
-
- (locally
- (declare (optimize (inhibit-warnings 0) (compilation-speed 2)))
- (flet ((foo (&key (x :vx x-p)) (list x x-p)))
- (foo 1 2)))
-
- or a more simple example:
-
- (locally
- (declare (optimize (inhibit-warnings 0) (compilation-speed 2)))
- (lambda (x) (declare (fixnum x)) (if (< x 0) 0 (1- x))))
-
215: ":TEST-NOT handling by functions"
a. FIND and POSITION currently signal errors when given non-NIL for
both their :TEST and (deprecated) :TEST-NOT arguments, but by
a. On X86 an immediate operand for IMUL is printed incorrectly.
b. On X86 operand size prefix is not recognized.
-248: "reporting errors in type specifier syntax"
- (TYPEP 1 '(SYMBOL NIL)) says something about "unknown type
- specifier".
-
251:
(defun foo (&key (a :x))
(declare (fixnum a))
b. The same for CSUBTYPEP.
-261:
- * (let () (list (the (values &optional fixnum) (eval '(values)))))
- debugger invoked on condition of type TYPE-ERROR:
- The value NIL is not of type FIXNUM.
-
262: "yet another bug in inline expansion of local functions"
Compiler fails on
Urgh... It's time to write IR1-copier.
-265:
- SB-EXT:RUN-PROGRAM is currently non-functional on Linux/PPC;
- attempting to use it leads to segmentation violations. This is
- probably because of a bogus implementation of
- os_restore_fp_control().
-
266:
David Lichteblau provided (sbcl-devel 2003-06-01) a patch to fix
behaviour of streams with element-type (SIGNED-BYTE 8). The patch
The issue seems to be that construction of a discriminating function
calls COMPUTE-EFFECTIVE-METHOD with methods that are not all applicable.
-282: "type checking in full calls"
- In current (0.8.3.6) implementation a CAST in a full call argument
- is not checked; but the continuation between the CAST and the
- combination has the "checked" type and CAST performs unsafe
- coercion; this may lead to errors: if FOO is declared to take a
- FIXNUM, this code will produce garbage on a machine with 30-bit
- fixnums:
-
- (foo (aref (the (array (unsigned-byte 32)) x)))
-
283: Thread safety: libc functions
There are places that we call unsafe-for-threading libc functions
that we should find alternatives for, or put locks around. Known or
this problem.
288: fundamental cross-compilation issues (from old UGLINESS file)
- 288a: Using host floating point numbers to represent target
- floating point numbers, or host characters to represent
- target characters, is theoretically shaky. (The characters
- are OK as long as the characters are in the ANSI-guaranteed
- character set, though, so they aren't a real problem as
- long as the sources don't need anything but that.)
- 288b: The compiler still makes assumptions about cross-compilation-host
- implementation of ANSI CL:
- 288b1: Simple bit vectors are distinct from simple vectors (in
- DEFINE-STORAGE-BASE and elsewhere). (Actually, I'm not *sure*
- that things would really break if this weren't so, but I
- strongly suspect that they would.)
- 288b2: SINGLE-FLOAT is distinct from DOUBLE-FLOAT. (This is
- in a sense just one aspect of bug 288a.)
+ Using host floating point numbers to represent target floating point
+ numbers, or host characters to represent target characters, is
+ theoretically shaky. (The characters are OK as long as the characters
+ are in the ANSI-guaranteed character set, though, so they aren't a
+ real problem as long as the sources don't need anything but that;
+ the floats are a real problem.)
289: "type checking and source-transforms"
a.
the control word; however, this clobbers any change the user might
have made.
-292:
- (COMPILE NIL
- `(LAMBDA (C)
- (DECLARE (TYPE (INTEGER -5945502333 12668542) C)
- (OPTIMIZE (SPEED 3)))
- (LET ((V2 (* C 12)))
- (- (MAX (IF (/= 109335113 V2) -26479 V2)
- (DEPOSIT-FIELD 311
- (BYTE 14 28)
- (MIN (MAX 521326 C) -51)))))))
- causes compiler failure (reported by Paul Dietz).
+296:
+ (reported by Adam Warner, sbcl-devel 2003-09-23)
+
+ The --load toplevel argument does not perform any sanitization of its
+ argument. As a result, files with Lisp pathname pattern characters
+ (#\* or #\?, for instance) or quotation marks can cause the system
+ to perform arbitrary behaviour.
+
+297:
+ LOOP with non-constant arithmetic step clauses suffers from overzealous
+ type constraint: code of the form
+ (loop for d of-type double-float from 0d0 to 10d0 by x collect d)
+ compiles to a type restriction on X of (AND DOUBLE-FLOAT (REAL
+ (0))). However, an integral value of X should be legal, because
+ successive adds of integers to double-floats produces double-floats,
+ so none of the type restrictions in the code is violated.
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