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Author SHA1 Message Date
Andy Wingo
e309f3bf9e with-continuation-barrier calls exit(3) _after_ unwinding
* libguile/continuations.c (scm_handler, c_handler)
  (scm_c_with_continuation_barrier, scm_with_continuation_barrier):
  Instead of calling scm_handle_by_message_noexit in the pre-unwind
  handler, roll our own exception printing in the pre-unwind, and do to
  exit()-on-quit in the post-unwind handler.  This lets the stack unwind
  at exit-time so that pending dynwinds run.

* test-suite/tests/continuations.test ("continuations"): Add a test.
2011-03-30 12:43:50 +02:00
Ludovic Courtès
443f25dcff Fix procedure->pointer' for functions returning void'.
* libguile/foreign.c (unpack): Handle `FFI_TYPE_VOID'.

* test-suite/tests/foreign.test ("procedure->pointer")["procedures
  returning void"]: New test.  Reported by
  Tristan Colgate <tcolgate@gmail.com>.
2011-03-29 23:35:24 +02:00
Andy Wingo
9dadfa47b0 fix prompt in fix in single-value context compilation
* module/language/tree-il/compile-glil.scm (flatten): When compiling a
  <prompt> in push context with an RA, after the body returns normally,
  jump to that RA instead of to our POST label (which in that case does
  not need to be emitted).  Fixes a tail <prompt> in a push <fix>.

* test-suite/tests/control.test ("prompt in different contexts"): Add
  more test cases.
2011-03-27 15:00:18 +02:00
Andy Wingo
2a6f90e524 Revert "with-continuation-barrier carps, calls exit(3) _after_ unwinding"
This reverts commit ecba00af65.
2011-03-25 10:47:10 +01:00
Andy Wingo
ecba00af65 with-continuation-barrier carps, calls exit(3) _after_ unwinding
* libguile/continuations.c (scm_handler, c_handler)
  (scm_c_with_continuation_barrier, scm_with_continuation_barrier): Call
  scm_handle_by_message_noexit in the post-unwind handler, so that
  dynwinds

* test-suite/tests/continuations.test ("continuations"): Add a test.
2011-03-24 20:20:18 +01:00
Ludovic Courtès
190d4b0d93 Make VM string literals immutable.
* libguile/strings.c (scm_i_make_string, scm_i_make_wide_string): Add
  `read_only_p' parameter.  All callers updated.

* libguile/vm-i-loader.c (load_string, load_wide_string): Push read-only
  strings.

* test-suite/tests/strings.test ("literals"): New test prefix.
2011-03-20 23:34:42 +01:00
Ludovic Courtès
60582b7c2a Fix `i18n.test' when the German or Greek locales aren't available.
* test-suite/tests/i18n.test (%german-utf8-locale, %greek-utf8-locale):
  New variables.
  (under-german-utf8-locale-or-unresolved,
  under-greek-utf8-locale-or-unresolved): Use them.
2011-03-18 11:24:51 +01:00
Ludovic Courtès
e4612ff642 i18n: Add case mapping and case-insensitive string comparison tests.
Thanks to Mark H Weaver <mhw@netris.org> for coming up with most of the
examples.

* test-suite/tests/i18n.test (%german-utf8-locale-name,
  %greek-utf8-locale-name): New variables.
  (under-german-utf8-locale-or-unresolved,
  under-greek-utf8-locale-or-unresolved): New procedures.
  ("text collation (German)", "text collation (Greek)"): New tests
  prefixes.
  ("string mapping")["string-locale-upcase German",
  "string-locale-upcase Greek", "string-locale-upcase Greek (two
  sigmas)", "string-locale-downcase Greek", "string-locale-downcase
  Greek (two sigmas)"]: New tests.
2011-03-17 22:45:36 +01:00
Ludovic Courtès
c428d33d32 i18n: Re-enable tests with the Turkish locale.
* test-suite/tests/i18n.test ("character mapping")["char-locale-upcase
  Turkish", "char-locale-downcase Turkish"]: Re-enable.  Passes with
  GNU libc 2.12.1.
  ("string mapping")["string-locale-upcase Turkish",
  "string-locale-downcase Turkish"]: Likewise.
2011-03-17 22:45:07 +01:00
Andy Wingo
148c331769 add pointer->scm, scm->pointer
* libguile/foreign.c (scm_pointer_to_scm, scm_scm_to_pointer): New
  functions, useful to pass and receive SCM values to and from foreign
  functions.

* module/system/foreign.scm: Export the new functions.

* doc/ref/api-foreign.texi (Foreign Variables): Add docs.

* test-suite/tests/foreign.test ("pointer<->scm"): Tests.
2011-03-17 10:39:02 +01:00
Andy Wingo
f5fc7e5710 add more prompt/abort tests
* test-suite/tests/control.test: Use c&e tests for most test blocks.
  Note that this did not catch the recent bug.
  ("reified continuations"): Add a new test for capturing partial
  continuations containing pending call frames.  Before these would
  contain dynamic links pointing out of the continuation segment, which
  would not be relocated; now, the dynamic links are only made when the
  frames are activated.

  Thanks to Wolfgang J Moeller for the bug report and test case.
2011-03-15 23:54:06 +01:00
Andreas Rottmann
ead04a04cd Enhance transcoder-related functionality of `(rnrs io ports)'
* module/rnrs/io/ports.scm (transcoder-eol-style)
  (transcoder-error-handling-mode): Export these.
  (textual-port?): Implement this procedure and export it.
* module/rnrs.scm: Export these here as well.

* module/rnrs/io/ports.scm (port-transcoder): Implement this procedure.
  (binary-port?): Treat only ports without an encoding as binary ports,
  add docstring.
  (standard-input-port, standard-output-port, standard-error-port):
  Ensure these are created without an encoding.
  (eol-style): Add `none' as enumeration member.
  (native-eol-style): Switch to `none' from `lf'.

* test-suite/tests/r6rs-ports.test (7.2.7 Input ports)
  (8.2.10 Output ports): Test binary-ness of `standard-input-port',
  `standard-output-port' and `standard-error-port'.
  (8.2.6 Input and output ports): Add test for `port-transcoder'.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-03-13 23:14:43 +01:00
Andreas Rottmann
a6c377f7d8 Add get-string-n' and get-string-n!' for R6RS ports
* libguile/r6rs-ports.c (scm_get_string_n_x): Implement `get-string-n!'
  in C for efficiency.
* libguile/r6rs-ports.h: Add prototype for this function.
* module/ice-9/binary-ports.scm: Export `get-string-n!'.

* module/rnrs/io/ports.scm (get-string-n): Implement based on
  `get-string-n!'.
  Export both `get-string-n!' and `get-string-n'.
* module/rnrs.scm: Also export these.

* test-suite/tests/r6rs-ports.test (8.2.9 Textual input): Add a few
  tests for `get-string-n' and `get-string-n!'.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-03-13 22:39:14 +01:00
Ludovic Courtès
b075a6d766 Fix `define-inlinable' in SRFI-9 so that arguments are evaluated only once.
* module/srfi/srfi-9.scm (define-inlinable): When inlining, evaluate the
  arguments only once.  Reported by Andreas Rottmann; thanks to Andy
  Wingo for the elegant solution.

* test-suite/tests/srfi-9.test ("side-effecting arguments"): New test
  prefix.
2011-03-11 21:02:30 +01:00
Ludovic Courtès
d82f8518b9 FFI: Return the right alignment for structures.
* libguile/foreign.c (scm_alignof): Fix handling of structure alignment.
  Reported by Aidan Gauland <aidalgol@no8wireless.co.nz>.

* test-suite/tests/foreign.test ("structs")["alignof { int8, double,
  int8 }", "int8, { int8, double, int8 }, int16"]: New tests.
2011-03-10 22:24:23 +01:00
Andreas Rottmann
531c9f1dc5 Don't mix definitions and expressions in SRFI-9
The expansion of `define-inlinable' contained an expression, which made
SRFI-9's `define-record-type' fail in non-toplevel contexts ("definition
used in expression context").

* module/srfi/srfi-9.scm (define-inlinable): Get rid of apparently
  useless expression in the expansion, so the expansion yields only
  definitions.  At the same time, use a space in the generated names to
  lessen the chances of name conflicts, also avoiding -Wunused-toplevel
  warnings.
* test-suite/tests/srfi-9.test (non-toplevel): New test verifying that
  `define-record-type' works in non-toplevel context as well.
* doc/ref/srfi-modules.texi (SRFI-9 - define-record-type): Add
  subsubsection noting that Guile does not enforce top-levelness.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-03-09 21:36:54 +01:00
Mark H Weaver
0748e3f3f0 Quotient, remainder and modulo accept inexact integers
* libguile/numbers.c (scm_quotient, scm_remainder, scm_modulo): Accept
  inexact integers as well as exact ones, as required by the R5RS.

* test-suite/tests/numbers.test (quotient, remainder, modulo): Add tests.
2011-03-08 18:20:11 -05:00
Mark H Weaver
495a39c40f Quotient, remainder and modulo accept inexact integers
* libguile/numbers.c (scm_quotient, scm_remainder, scm_modulo): Accept
  inexact integers as well as exact ones, as required by the R5RS.

* test-suite/tests/numbers.test (quotient, remainder, modulo): Add tests.
2011-03-08 18:18:31 -05:00
Mark H Weaver
ae255d65c3 Fix bytevectors VALIDATE_REAL to test for reals, not rationals
Reported and fixed by Daniel Llorens <dll@bluewin.ch>.

* libguile/bytevectors.c (VALIDATE_REAL): Test for reals, not rationals.

* test-suite/tests/srfi-4.test (f32 vectors, f64 vectors): Add tests.
2011-03-08 17:52:52 -05:00
Mark H Weaver
73ea546c51 Fix bytevectors VALIDATE_REAL to test for reals, not rationals
Reported and fixed by Daniel Llorens <dll@bluewin.ch>.

* libguile/bytevectors.c (VALIDATE_REAL): Test for reals, not rationals.

* test-suite/tests/srfi-4.test (f32 vectors, f64 vectors): Add tests.
2011-03-08 17:50:47 -05:00
Andy Wingo
534491d0b7 fix scm_setter
* libguile/procs.c (scm_setter): Only get at the setter slot if the pure
  generic actually has a setter.  Needs test.

* test-suite/tests/goops.test ("defining generics"):
  ("defining accessors"): Add `setter' tests.
2011-03-08 20:53:17 +01:00
Ludovic Courtès
65ea26c582 Handle letrec*' like letrec' in simple cases.
* module/language/tree-il/fix-letrec.scm (fix-letrec!): When X is a
  `letrec*' with only lambdas and simple expressions, analyze it as if
  it were a `letrec'.
* test-suite/tests/tree-il.test ("letrec"): Add test for
  `(letrec* (x y) (xx yy) ((const 1) (const 2)) (lexical y yy))'.
2011-03-06 23:05:01 +01:00
Andy Wingo
d59dd06eb9 add ice-9 eval-string
* module/Makefile.am:
* module/ice-9/eval-string.scm: New module, for use in implementing the
  scm_c_eval_string_from_file_line suggestion.

* test-suite/Makefile.am:
* test-suite/tests/eval-string.test: New tests.
2011-03-05 23:16:11 +01:00
Andy Wingo
8d795c83d4 more module-use-interfaces! tweaks
* module/ice-9/boot-9.scm (module-use-interfaces!): Fix up to prevent
  duplication in the use list of multiple incoming interfaces.

* test-suite/tests/modules.test ("module-use"): Add tests.
2011-03-03 11:29:27 +01:00
Mark H Weaver
0176bbb717 Portability fixes for popen.test (for when /bin/sh is not bash)
* test-suite/tests/popen.test (open-input-pipe no-duplicate): Pass
  "read REPLY" command instead of "read" to the subshell, for improved
  portability.  In particular, it is needed when /bin/sh is dash.

  (open-output-pipe no-duplicate): Pass "exec guile [...]" instead of
  "guile [...]" to the subshell, to ensure that the subshell will not
  run guile as a subprocess while holding a duplicate of STDIN, which
  would cause this test to fail.  This is needed when /bin/sh is dash.
2011-03-02 14:15:30 -05:00
Mark H Weaver
bd79ebf318 Portability fixes for popen.test (for when /bin/sh is not bash)
* test-suite/tests/popen.test (open-input-pipe no-duplicate): Pass
  "read REPLY" command instead of "read" to the subshell, for improved
  portability.  In particular, it is needed when /bin/sh is dash.

  (open-output-pipe no-duplicate): Pass "exec guile [...]" instead of
  "guile [...]" to the subshell, to ensure that the subshell will not
  run guile as a subprocess while holding a duplicate of STDIN, which
  would cause this test to fail.  This is needed when /bin/sh is dash.
2011-03-02 14:12:53 -05:00
Ludovic Courtès
58b1db5f24 Have `read' update line/column numbers when reading SCSH block comments.
* libguile/read.c (scm_read_scsh_block_comment): Use `scm_getc' instead
  of `scm_get_byte_or_eof'.

* test-suite/tests/reader.test ("read-options")["position of SCSH block
  comment"]: New test.
2011-02-28 23:33:47 +01:00
Andy Wingo
fa3df855e8 add syncase test
* test-suite/tests/syncase.test ("top-level expansions"): New test.
2011-02-27 12:59:04 +01:00
Ludovic Courtès
da0c22b5d3 Fix a bug in `vhash-delete'.
* module/ice-9/vlist.scm (vhash-delete): Honor HASH.
* test-suite/tests/vlist.test ("vhash")["vhash-delete honors HASH"]: New test.
2011-02-22 00:37:26 +01:00
Mark H Weaver
05f167beb2 Improvements to log' and log10'
* libguile/numbers.c (log_of_shifted_double, log_of_exact_integer,
  log_of_exact_integer_with_size, log_of_fraction): New internal static
  functions used by scm_log and scm_log10.

  (scm_log, scm_log10): Robustly handle large integers, large and small
  fractions, and fractions close to 1.  Previously, computing logarithms
  of fractions close to 1 yielded grossly inaccurate results, and the
  other cases yielded infinities even though the answer could easily fit
  in a double.  (log -0.0) now returns -inf.0+<PI>i, where previously it
  returned -inf.0.  (log 0) now throws a numerical overflow exception,
  where previously it returned -inf.0.  (log 0.0) still returns -inf.0.
  Analogous changes made to `log10'.

* test-suite/tests/numbers.test (log, log10): Add tests.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-02-16 00:47:34 +01:00
Mark H Weaver
14a01ec1a8 Fix comment above number-theoretic division tests
* test-suite/tests/numbers.test: Fix comment.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-02-16 00:47:30 +01:00
Mark H Weaver
a5f6b751be Improvements to log' and log10'
* libguile/numbers.c (log_of_shifted_double, log_of_exact_integer,
  log_of_exact_integer_with_size, log_of_fraction): New internal static
  functions used by scm_log and scm_log10.

  (scm_log, scm_log10): Robustly handle large integers, large and small
  fractions, and fractions close to 1.  Previously, computing logarithms
  of fractions close to 1 yielded grossly inaccurate results, and the
  other cases yielded infinities even though the answer could easily fit
  in a double.  (log -0.0) now returns -inf.0+<PI>i, where previously it
  returned -inf.0.  (log 0) now throws a numerical overflow exception,
  where previously it returned -inf.0.  (log 0.0) still returns -inf.0.
  Analogous changes made to `log10'.

* test-suite/tests/numbers.test (log, log10): Add tests.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-02-16 00:40:35 +01:00
Mark H Weaver
c05696aa94 Fix comment above number-theoretic division tests
* test-suite/tests/numbers.test: Fix comment.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2011-02-16 00:40:11 +01:00
Mark H Weaver
8b56bcec44 Optimize truncate, round, floor, and ceiling
* libguile/numbers.c (scm_c_truncate): Use ceil (x) instead of
  -floor (-x).

  (scm_truncate_number): Implement directly instead of by checking the
  sign and using scm_floor or scm_ceiling.  Use scm_truncate_quotient
  for fractions.  Make extensible, so that new number types implemented
  in GOOPS will be able to do the job more efficiently, since it is
  often easier to implement truncate than floor or ceiling.

  (scm_round_number): Optimize fractions case by using
  scm_round_quotient.  Make extensible, so that new number types
  implemented in GOOPS will be able to do the job efficiently.

  (scm_floor, scm_ceiling): Optimize fractions case by using
  scm_floor_quotient and scm_ceiling_quotient, respectively.

* test-suite/tests/numbers.test: Add test cases.
2011-02-14 20:31:14 +01:00
Mark H Weaver
8f9da3406b Add four new sets of fast quotient and remainder operators
* libguile/numbers.c (scm_floor_divide, scm_floor_quotient,
  scm_floor_remainder, scm_ceiling_divide, scm_ceiling_quotient,
  scm_ceiling_remainder, scm_truncate_divide, scm_truncate_quotient,
  scm_truncate_remainder, scm_round_divide, scm_round_quotient,
  scm_round_remainder): New extensible procedures `floor/',
  `floor-quotient', `floor-remainder', `ceiling/', `ceiling-quotient',
  `ceiling-remainder', `truncate/', `truncate-quotient',
  `truncate-remainder', `round/', `round-quotient', and
  `round-remainder'.

* libguile/numbers.h: Add function prototypes.

* test-suite/tests/numbers.test: Add tests.

* doc/ref/api-data.texi (Arithmetic): Add documentation.

* NEWS: Add NEWS entry.
2011-02-14 20:30:53 +01:00
Andy Wingo
99015f6d4e add vector-move test cases
* test-suite/tests/vectors.test ("vector-move-left!")
  ("vector-move-right!"): Add test cases for recent bug.
2011-02-14 20:21:04 +01:00
Ludovic Courtès
a4060f6710 Add `*current-warning-prefix*'.
* module/system/base/message.scm (*current-warning-prefix*): New
  variable.
  (%warning-types): Honor `*current-warning-prefix*'.

* module/scripts/compile.scm (compile): Use an empty
  `*current-warning-prefix*'.

* module/system/repl/common.scm (repl-compile): Likewise.

* test-suite/tests/tree-il.test (call-with-warnings): Likewise.
2011-02-13 19:13:36 +01:00
Ludovic Courtès
7354a105cd Have `the-scm-module' be its own public interface (bug #30623).
* module/ice-9/boot-9.scm (the-scm-module): Make it its own public
  interface.

* test-suite/tests/modules.test ("foundations")["the-root-module",
  "the-scm-module"]: New tests.
2011-02-13 15:36:52 +01:00
Andy Wingo
6f06e8d35f autocompile -> auto-compile
* NEWS:
* check-guile.in:
* doc/guile.1:
* doc/ref/scheme-scripts.texi:
* libguile/init.c:
* libguile/load.c:
* libguile/load.h:
* libguile/script.c:
* module/Makefile.am:
* module/ice-9/boot-9.scm:
* module/scripts/compile.scm:
* module/system/base/compile.scm:
* test-suite/Makefile.am:
* test-suite/tests/popen.test: Change "autocompile" to "auto-compile" or
  "auto_compile", as appropriate, in variable names, function names,
  command line arguments, and the documentation.
2011-02-13 15:06:11 +01:00
Mark H Weaver
4a46bc2a5f Fixes and improvements to number-theoretic division operators
* libguile/numbers.c (scm_euclidean_quotient, scm_euclidean_divide,
  scm_centered_quotient, scm_centered_divide): Fix bug in inum/inum
  case, where (quotient most-negative-fixnum -1) would not be converted
  to a bignum.

  (scm_euclidean_quotient): Be more anal-retentive about calling
  scm_remember_upto_here_1 after mpz_sgn, (even though mpz_sgn is
  documented as being implemented as a macro and certainly won't
  do any allocation).  It's better to be safe than sorry here.

  (scm_euclidean_quotient, scm_centered_quotient): In the bignum/inum
  case, check if the divisor is 1, since this will allow us to avoid
  allocating a new bignum.

  (scm_euclidean_divide, scm_centered_quotient, scm_centered_divide):
  When computing the intermediate truncated quotient (xx / yy) and
  remainder, use (xx % yy) instead of (xx - qq * yy), on the theory that
  the compiler is more likely to handle this case intelligently and
  maybe combine the operations.

  (scm_euclidean_divide): In the bignum/inum case, we know that the
  remainder will fit in an fixnum, so don't bother allocating a bignum
  for it.

  (scm_euclidean_quotient, scm_euclidean_remainder,
  scm_euclidean_divide, scm_centered_quotient, scm_centered_remainder,
  scm_centered_divide): Minor stylistic changes.

* test-suite/tests/numbers.test: Rework testing framework for
  number-theoretic division operators to be more efficient and
  comprehensive in its testing of code paths and problem cases.
2011-02-12 13:00:43 +01:00
Ludovic Courtès
064c27c4ef Simplify `scm_i_set_port_encoding_x'.
* libguile/ports.c (find_valid_encoding): Remove.
  (scm_i_set_port_encoding_x): Remove call to `find_valid_encoding'.
  Remove `valid_enc'.  Rename `enc' to `encoding'.

* test-suite/tests/ports.test ("port-encoding"): New test prefix.
2011-02-10 23:04:43 +01:00
Ludovic Courtès
fe949e7bc6 Add `read-delimited' tests.
* test-suite/tests/rdelim.test ("read-delimited", "read-delimited!"):
  New test prefixes.
2011-02-10 23:04:38 +01:00
Andy Wingo
0bc86fcedc getopt-long: arg parsing errors cause print and exit, not backtrace
* module/ice-9/getopt-long.scm (fatal-error): New helper.  For errors
  that come from the user -- i.e., not the grammar -- we will handle our
  own error printing and call `exit' rather than relying on the root
  catch handler.  This is more friendly to the user than a Scheme
  backtrace.
  (parse-option-spec, process-options, getopt-long): Call `fatal-error'
  as appropriate.

* test-suite/tests/getopt-long.test (pass-if-fatal-exception): New
  helper, checks that a certain key was thrown to, and that suitable
  output has been printed on an error port.
  (deferr): Change to expect a 'quit key instead of 'misc-error.  Update
  exceptions to not match the beginning of the string, as that will be
  the program name.  Update tests to use pass-if-fatal-exception.
2011-02-10 12:17:23 +01:00
Ludovic Courtès
9970cf6708 Improve type checking when invoking foreign functions.
* libguile/foreign.c (unpack): Make sure X is a pointer before using
  `SCM_POINTER_VALUE'.

* test-suite/tests/foreign.test ("pointer->procedure"): New test prefix.
2011-02-09 00:08:14 +01:00
Ludovic Courtès
1497e87a4f Make `(format #f ...)' always Unicode-capable.
* module/ice-9/format.scm (format): When DESTINATION is #f, use a
  Unicode-capable output string port.

* test-suite/tests/format.test ("format basic output")["default to
  Unicode-capable port"]: New test.
2011-02-08 23:14:00 +01:00
Ludovic Courtès
de6fb1875d Have `define-wrapped-pointer-type' take a type name.
* module/system/foreign.scm (define-wrapped-pointer-type): Add a
  `type-name' argument instead of non-hygienically generating one.

* test-suite/tests/foreign.test (foo): Update.

* doc/ref/api-foreign.texi (Void Pointers and Byte Access): Update
  accordingly.
2011-02-08 22:42:45 +01:00
Andy Wingo
36ad25332e fix quasiquote test
* test-suite/tests/syntax.test ("quasiquote"): Fix unquote-splicing
  extra args test to update for current behavior.
2011-02-08 22:43:43 +01:00
Ludovic Courtès
6debc49e2c Add tests for memq' and memv'.
This is a follow-up to a75ea65896 ("fix
memq/memv inlining").

* test-suite/tests/list.test ("memq", "memv"): New test prefixes.
2011-02-07 22:12:10 +01:00
Mark H Weaver
9d427b2cc3 Improved exactness handling for complex number parsing
When parsing non-real complex numbers, apply exactness specifiers on
per-component basis, as is done in PLT Scheme.  For complex numbers
written in rectangular form, exactness specifiers are applied to the
real and imaginary parts before calling scm_make_rectangular.  For
complex numbers written in polar form, exactness specifiers are applied
to the magnitude and angle before calling scm_make_polar.

There are two kinds of exactness specifiers: forced and implicit.  A
forced exactness specifier is a "#e" or "#i" prefix at the beginning of
the entire number, and applies to both components of a complex number.
"#e" causes each component to be made exact, and "#i" causes each
component to be made inexact.  If no forced exactness specifier is
present, then the exactness of each component is determined
independently by the presence or absence of a decimal point or hash mark
within that component.  If a decimal point or hash mark is present, the
component is made inexact, otherwise it is made exact.

After the exactness specifiers have been applied to each component, they
are passed to either scm_make_rectangular or scm_make_polar to produce
the final result.  Note that this will result in a real number if the
imaginary part, magnitude, or angle is an exact 0.

Previously, both forced and implicit exactness specifiers applied to
the number as a whole _after_ calling scm_make_rectangular or
scm_make_polar.

For example, (string->number "#i5.0+0i") now does the equivalent of:

  (make-rectangular (exact->inexact 5.0) (exact->inexact 0))

which yields 5.0+0.0i.  Previously it did the equivalent of:

  (exact->inexact (make-rectangular 5.0 0))

which yielded 5.0.

* libguile/numbers.c (mem2ureal): Receive a forced exactness specifier
  (forced_x), create and maintain our own implicit exactness specifier
  flag local to this component (implicit_x), and apply these exactness
  specifiers within this function.  Previously, we received a pointer to
  an implicit exactness specifier flag from above, and the exactness
  specifiers were applied from within scm_i_string_length.

  (mem2complex): Receive a forced exactness specifier parameter and pass
  it down to mem2ureal.  Previously, we passed down a pointer to an
  implicit exactness specifier flag instead.

  (scm_i_string_to_number): No longer create an implicit exactness
  specifier flag here, and do not apply exactness specifiers here.  All
  we do here now regarding exactness is to parse the "#e" or "#i" prefix
  (if any) and pass this information down to mem2ureal via mem2complex
  in the form of an explicit exactness specifier (forced_x).

  (scm_c_make_polar): If the cosine and sine of the angle are both NaNs
  and the magnitude is zero, return 0.0+0.0i instead of +nan.0+nan.0i.
  This case happens when the angle is not finite.

* test-suite/tests/numbers.test (string->number): Move the test cases
  for non-real complex numbers into a separate table in which the
  expected real and imaginary parts are separate entries.  Add several
  new test cases.
2011-02-03 10:50:24 +01:00
Andy Wingo
fc740bfce7 fix srfi-13 test argument orders
* test-suite/tests/srfi-13.test ("string-filter", "string-delete"): Fix
  argument order in tests.
2011-02-02 21:55:13 +01:00