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Author SHA1 Message Date
Mark H Weaver
ff62c16828 Add two new sets of fast quotient and remainder operators
* libguile/numbers.c (scm_euclidean_quo_and_rem, scm_euclidean_quotient,
  scm_euclidean_remainder, scm_centered_quo_and_rem,
  scm_centered_quotient, scm_centered_remainder): New extensible
  procedures `euclidean/', `euclidean-quotient', `euclidean-remainder',
  `centered/', `centered-quotient', `centered-remainder'.

* libguile/numbers.h: Add function prototypes.

* module/rnrs/base.scm: Remove incorrect stub implementations of `div',
  `mod', `div-and-mod', `div0', `mod0', and `div0-and-mod0'.  Instead do
  renaming imports of `euclidean-quotient', `euclidean-remainder',
  `euclidean/', `centered-quotient', `centered-remainder', and
  `centered/', which are equivalent to the R6RS operators.

* module/rnrs/arithmetic/fixnums.scm (fxdiv, fxmod, fxdiv-and-mod,
  fxdiv0, fxmod0, fxdiv0-and-mod0): Remove redundant checks for division
  by zero and unnecessary complexity.
  (fx+/carry): Remove unneeded calls to `inexact->exact'.

* module/rnrs/arithmetic/flonums.scm (fldiv, flmod, fldiv-and-mod,
  fldiv0, flmod0, fldiv0-and-mod0): Remove redundant checks for division
  by zero and unnecessary complexity.  Remove unneeded calls to
  `inexact->exact' and `exact->inexact'

* test-suite/tests/numbers.test: (test-eqv?): New internal predicate for
  comparing numerical outputs with expected values.

  Add extensive test code for `euclidean/', `euclidean-quotient',
  `euclidean-remainder', `centered/', `centered-quotient',
  `centered-remainder'.

* test-suite/tests/r6rs-arithmetic-fixnums.test: Fix some broken test
  cases, and remove `unresolved' test markers for `fxdiv', `fxmod',
  `fxdiv-and-mod', `fxdiv0', `fxmod0', and `fxdiv0-and-mod0'.

* test-suite/tests/r6rs-arithmetic-flonums.test: Remove `unresolved'
  test markers for `fldiv', `flmod', `fldiv-and-mod', `fldiv0',
  `flmod0', and `fldiv0-and-mod0'.

* doc/ref/api-data.texi (Arithmetic): Document `euclidean/',
  `euclidean-quotient', `euclidean-remainder', `centered/',
  `centered-quotient', and `centered-remainder'.

  (Operations on Integer Values): Add cross-references to `euclidean/'
  et al, from `quotient', `remainder', and `modulo'.

* doc/ref/r6rs.texi (rnrs base): Improve documentation for `div', `mod',
  `div-and-mod', `div0', `mod0', and `div0-and-mod0'.  Add
  cross-references to `euclidean/' et al.

* NEWS: Add NEWS entry.
2011-01-30 23:00:38 +01:00
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/flonums.scm (Browse further)