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Author SHA1 Message Date
Mark H Weaver
93da406f33 Optimize R6RS bitwise operators.
* module/rnrs/arithmetic/bitwise.scm (bitwise-if, bitwise-length,
  bitwise-first-bit-set, bitwise-bit-field, bitwise-reverse-bit-field):
  Replace these with aliases to the identical SRFI-60 operators
  'bitwise-if', 'integer-length', 'first-set-bit', 'bit-field', and
  'reverse-bit-field'.

  (bitwise-copy-bit, bitwise-copy-bit-field, bitwise-rotate-bit-field):
  Reimplement these based upon the similar SRFI-60 operators 'copy-bit',
  'copy-bit-field', and 'rotate-bit-field'.

* test-suite/tests/r6rs-arithmetic-bitwise.test (bitwise-copy-bit): Fix
  test to conform to the specification, which requires the third
  argument to be either 0 or 1.

* test-suite/tests/r6rs-arithmetic-fixnums.test (fxcopy-bit): Fix test
  to conform to the specification, which requires the third argument to
  be either 0 or 1.
2013-07-21 10:00:48 -04:00
Mark H Weaver
1f4f2a12d0 Update copyright dates of recently-changed R6RS bitwise/flonums files.
* module/rnrs/arithmetic/bitwise.scm:
  module/rnrs/arithmetic/flonums.scm:
  test-suite/tests/r6rs-arithmetic-bitwise.test:
  test-suite/tests/r6rs-arithmetic-flonums.test: Add 2013 to the
  copyright dates.
2013-07-16 12:12:25 -04:00
Mark H Weaver
e8f3299726 Fix 'bitwise-bit-count' for negative arguments.
Fixes <http://bugs.gnu.org/14864>.
Reported by Göran Weinholt <goran@weinholt.se>.

* module/rnrs/arithmetic/bitwise.scm (bitwise-bit-count): If the
  argument is negative, return the 'bitwise-not' of the result of
  'logcount', as per R6RS.  Previously, 'bitwise-bit-count' was
  identical to 'logcount'.
2013-07-14 14:08:33 -04:00
Andy Wingo
e44d2e4d98 remove encoding of versions into the file system (for now?)
* module/ice-9/boot-9.scm (find-versioned-module): Remove. Still had
  some bugs (e.g. for "." in the path and in finding compiled files),
  did too much computation and statting, and we don't really want to
  promote versioning. Nor do we want to hard-code a particular encoding
  of versions in the file-system. Perhaps the real way to do this is to
  be extensible somehow.
  (try-module-autoload): Just dispatch to primitive-load-path in all cases.

* module/rnrs
* module/rnrs.scm:
* module/rnrs/arithmetic/bitwise.scm:
* module/rnrs/arithmetic/fixnums.scm:
* module/rnrs/arithmetic/flonums.scm:
* module/rnrs/base.scm:
* module/rnrs/conditions.scm:
* module/rnrs/control.scm:
* module/rnrs/enums.scm:
* module/rnrs/eval.scm:
* module/rnrs/exceptions.scm:
* module/rnrs/files.scm:
* module/rnrs/hashtables.scm:
* module/rnrs/io/simple.scm:
* module/rnrs/lists.scm:
* module/rnrs/mutable-pairs.scm:
* module/rnrs/mutable-strings.scm:
* module/rnrs/programs.scm:
* module/rnrs/r5rs.scm:
* module/rnrs/records/inspection.scm:
* module/rnrs/records/procedural.scm:
* module/rnrs/records/syntactic.scm:
* module/rnrs/sorting.scm:
* module/rnrs/syntax-case.scm:
* module/rnrs/unicode.scm: Move these files, eliding the "6/" infix, so
  that they are in the normal (unversioned) module path.
2010-06-16 22:20:28 +02:00
Renamed from module/rnrs/arithmetic/6/bitwise.scm (Browse further)