* libguile/numbers.c (scm_difference, scm_product):
Fix bugs when negating SCM_MOST_POSITIVE_FIXNUM+1,
aka -SCM_MOST_NEGATIVE_FIXNUM. Previously, these cases
failed to normalize the result to a fixnum, causing
`=', `eqv?' and `equal?' to fail, e.g.:
(= most-negative-fixnum (- 0 (- most-negative-fixnum)))
(= most-negative-fixnum (* -1 (- most-negative-fixnum)))
(= most-negative-fixnum (* (- most-negative-fixnum) -1))
* test-suite/test/numbers.test: Add test cases to detect
bugs when negating SCM_MOST_POSITIVE_FIXNUM+1 and
SCM_MOST_NEGATIVE_FIXNUM by various methods.
* libguile/numbers.c (scm_inf_p, scm_finite_p, scm_nan_p): The domain of
these functions is the real numbers. Error on other input.
* doc/ref/api-data.texi (Reals and Rationals): Update the documentation
accordingly.
* test-suite/tests/numbers.test ("finite?", "inf?"): Update tests.
* libguile/numbers.c (scm_exact_p): Optimize by making use of the
SCM_INEXACTP macro.
(scm_inexact_p): Move it next to scm_exact_p, and add else's.
* test-suite/tests/numbers.test: Add test cases for `exact?'
and `inexact?' applied to infinities and NaNs.
* libguile/numbers.c (scm_finite_p): Add new predicate `finite?' from
R6RS to guile core, which returns #t if and only if its argument is
neither infinite nor a NaN. Note that this is not the same as (not
(inf? x)) or (not (infinite? x)), since NaNs are neither finite nor
infinite.
* test-suite/tests/numbers.test: Add test cases for `finite?'.
* module/rnrs/base.scm: Import `inf?' as `infinite?' instead of
reimplementing it. Previously, the R6RS implementation of
`infinite?' did not detect non-real complex infinities, nor did it
throw exceptions for non-numbers. (Note that NaNs _are_ considered
numbers by scheme, despite their name).
Import `finite?' instead of reimplementing it. Previously, the R6RS
implementation of `finite?' returned #t for both NaNs and non-real
complex infinities, in violation of R6RS.
* NEWS: Add NEWS entries, and reorganize existing numerics-related
entries together under one subheading.
* doc/ref/api-data.texi (Real and Rational Numbers): Add docs for
`finite?' and scm_finite_p.
* libguile/numbers.h: Add SCM_INUM1, a name for the fixnum 1. This is
analogous to SCM_INUM0, a name for 0, which already existed.
* libguile/numbers.c: Change occurrences of SCM_I_MAKINUM (0) and
SCM_I_MAKINUM (1) to SCM_INUM0 and SCM_INUM1, respectively.
* module/ice-9/format.scm (format): Test to make sure an argument is a
number before applying `inf?' and `nan?' to it. Formerly, format
would call `inf?' and `nan?' on arguments that might be either a
number or a string, although those predicates should ideally throw an
exception when applied to non-number objects.
This leaves space for native code.
* libguile/objcodes.h (SCM_OBJCODE_NATIVE_CODE)
(SCM_SET_OBJCODE_NATIVE_CODE): Reserve the fourth word of objcode for
"native code", whatever that means.
* libguile/objcodes.c: Update a comment.
(make_objcode_by_mmap): Put the fd in the third word.
* libguile/objcodes.h (SCM_OBJCODE_TYPE_MMAP)
(SCM_OBJCODE_TYPE_BYTEVECTOR, SCM_OBJCODE_TYPE_SLICE)
(SCM_OBJCODE_TYPE_STATIC): Enumerate objcode types instead of
expressing them as flags.
(SCM_OBJCODE_TYPE): Type is held in bits 8-15.
(SCM_OBJCODE_FLAGS): Flags are now shifted by 16 bits, not 8.
(SCM_MAKE_OBJCODE_TAG): New helper.
* libguile/continuations.c (STATIC_OBJCODE_TAG):
* libguile/control.c (STATIC_OBJCODE_TAG):
* libguile/foreign.c (STATIC_OBJCODE_TAG):
* libguile/gsubr.c (STATIC_OBJCODE_TAG):
* libguile/smob.c (STATIC_OBJCODE_TAG):
* libguile/objcodes.c (make_objcode_by_mmap, scm_c_make_objcode_slice)
(scm_bytecode_to_objcode): : Use SCM_MAKE_OBJCODE_TAG.
* libguile/vm-i-system.c (variable-ref, variable-set, variable-bound?):
Check that the argument is actually a variable. Thanks to Kevin
Holmes for the report.
* libguile/vm-engine.c (vm_engine): Error handling down here.
* THANKS: Update.
* libguile/objcodes.c (make_objcode_by_mmap): Use
`scm_from_latin1_stringn', not `scm_from_locale_stringn', to display
the invalid cookie in the error case.
* doc/ref/misc-modules.texi (Formatted Output): Adapt ~f documentation
to indicate that the output will always have a decimal point. Thanks
to Fu-gangqiang for the report.
* THANKS: Update.
As a result `read-line' handles decoding and decoding errors the same
way as `scm_getc'. It's also simpler and free of `malloc' calls.
* libguile/rdelim.c (scm_do_read_line): Remove.
(scm_read_line): Rewrite as a loop that calls `scm_getc'.
* test-suite/tests/rdelim.test: New file.
* test-suite/Makefile.am (SCM_TESTS): Add `tests/rdelim.test'.
* libguile/ports.c (get_codepoint): Reset `pt->input_cd' upon failure.
If `pt->ilseq_handler' is `SCM_ICONVEH_QUESTION_MARK', then return a
question mark.
[failure]: Use `scm_encoding_error' when raising an error.
* test-suite/lib.scm (exception:encoding-error): Adjust regexp.
* test-suite/tests/ports.test ("string ports")["read-char, wrong
encoding, error", "read-char, wrong encoding, escape", "read-char,
wrong encoding, substitute"]: New tests.
* libguile/strings.c (scm_from_latin1_stringn): Directly return a narrow
string instead of going through `scm_from_stringn'.
(scm_to_latin1_stringn): Directly return a copy of STR's raw bytes when
it's narrow.
* libguile/ports.c (scm_i_set_port_encoding_x): Always initialize
PT->encoding to something non-NULL. This fixes callers of
`scm_encoding_error' such that they always pass a non-NULL encoding
name. Reported by Matei Conovici.
This is so that compiling the same code on environments with different
locale settings yields the same result.
* module/system/base/compile.scm (compile-file): When ENC if #f, default
to "UTF-8" instead of `(fluid-ref %default-port-encoding)'.
* doc/ref/api-evaluation.texi (Compilation): Document the default output
file name and default source file encoding for `compile-file' and
`guile-tools compile'.
* module/language/tree-il/fix-letrec.scm: Replace U+2019 with an ASCII
quote. The iconv implementation on FreeBSD would immediately notice
and bail out when reading it under a US-ASCII locale.
Thanks to Bruno Haible for his suggestions. See
<http://lists.gnu.org/archive/html/bug-libunistring/2010-09/msg00007.html>,
for details.
* libguile/ports.c (register_finalizer_for_port): Always register a
finalizer for PORT.
(finalize_port): Close ENTRY->input_cd and ENTRY->output_cd.
(scm_new_port_table_entry): Initialize the `input_cd' and `output_cd'
fields.
(utf8_to_codepoint): New function.
(get_codepoint): Rewrite to use `iconv' instead of libunistring.
(scm_i_set_port_encoding_x): Initialize the `input_cd' and `output_cd'
fields.
(update_port_lf): Move upward. Use `switch' instead of `if's.
* libguile/ports.h (scm_t_port)[input_cd, output_cd]: New fields.
* libguile/print.c (codepoint_to_utf8, display_string): New functions.
(display_character): Use `display_string'.
(write_combining_character): Likewise.
(iprin1): Use `display_string' instead of `scm_lfwrite_str', and
`display_character' instead of `scm_putc'.
(write_character): Likewise.
(write_character_escaped): New function.
* test-suite/tests/encoding-escapes.test ("display output
escapes")["Rashomon"]: Use lower-case escapes.
["fake escape"]: New test.
