Apply some part of http://www.netlib.org/fp/dtoa.c with my eyes...
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* util.c (ruby_strtod): do not underflow only by preceeding zeros,
which may be canceled out by the exponent.
http://twitter.com/kazuho/status/753829998767714305
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* util.c (ruby_dtoa): [EXPERIMENTAL] adjust the case that the
Float value is close to the exact but unrepresentable middle
value of two values in the given precision, as r55604.
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* util.c (ruby_qsort): use qsort_s if available, for Microsoft
Visual Studio 2005 (msvcr80.dll) and mingw.
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allocate memory. This is pointed out by Facebook's Infer.
* gc.c (gc_prof_setup_new_record): ditto.
* regparse.c (parse_regexp): ditto.
* util.c (MALLOC): use xmalloc and xfree like above.
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* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
over setting errno then call rb_sys_fail, not to be clobbered
potentially and to reduce thread local errno accesses.
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* util.c (ruby_scan_digits): fix the return length off-by-one
error when the length is given and the last char is a digit.
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* compile.c (iseq_compile_each): out of range NTH_REF is always
nil.
* parse.y (parse_numvar): check overflow of NTH_REF and range.
[ruby-core:69393] [Bug #11192]
* util.c (ruby_scan_digits): make public and add length parameter.
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* util.c (ruby_getcwd): POSIX.1-2001 extends getcwd(3) as it
allocates the buffer if the argument is NULL.
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BSD version has different prototype.
* util.h: use qsort_r() as ruby_qsort() if it is GNU version.
* util.c: define ruby_qsort() if needed.
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* util.c (ruby_qsort): fix potential stack overflow on a large
machine. based on the patch by Conrad Irwin <conrad.irwin AT
gmail.com> at [ruby-core:51816]. [Bug #7772]
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* util.c (ruby_strtod): ignore too long fraction part, which does not
affect the result.
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If you want ruby to behave as before on x86, specify to use SSE like
-msse2 -mfpmath=sse for gcc.
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Patch by Google Inc. [ruby-core:45073].
* configure.in (RUBY_NACL): New M4 func to configure variables for
NaCl.
(RUBY_NACL_CHECK_PEPPER_TYPES): New M4 func to check the old names
of Pepper interface types.
(BTESTRUBY): New variable to specify which ruby should be run on
"make btest". NaCl can run the built binary by sel_ldr, but it need
rbconfig.rb. So this variable is distinguished from $MINIRUBY.
* thread_pthread.c: Disabled some features on NaCl.
* io.c: ditto.
* process.c: ditto.
* signal.c: ditto.
* file.c: ditto.
* missing/flock.c: ditto.
* nacl/pepper_main.c: An example implementation of Pepper application
that embeds Ruby.
* nacl/example.html: An example of web page that uses the Pepper
application.
* nacl/nacl-config.rb: Detects variants of NaCl SDK.
* nacl/GNUmakefile.in: Makefile template for NaCl specific build
process.
* nacl/package.rb: script for packaging a NaCl-Ruby embedding
application.
* nacl/reate_nmf.rb: Wrapper script of create_nmf.py
* dln.c (dln_load): Added a hack to call on NaCl.
* util.c (ruby_getcwd): Path to the current directort is not available
on NaCl.
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[Bug #5153] [ruby-core:38736]
* io.c (argf_next_argv): remove the call of above function.
* ext/-test-/add_suffix, test/-ext-/test_add_suffix.rb: remove the test
extension module because this is only for testsing ruby_add_suffix().
* LEGAL: remove the mention about a part of util.c, because now we
removed the part.
* io.c (argf_next_argv): now the new filename is not guranteed to
use, so should check the return value of rename(2).
* test/ruby/test_argf.rb (TestArgf#test_inplace_rename_impossible):
now we expect same result with other platforms on no_safe_rename
platforms (=Windows).
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But x86's FPU calculates double precision floating-point
numbers in 80bit precision, so it fails to round the value.
So ensure the value is assigned a variable. [ruby-dev:42551]
see also [ruby-math:00802]
http://www.shudo.net/java-grandprix99/strictfp/
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value.
* file.c (ruby_find_basename, ruby_find_extname): split from
rb_file_s_basename() and rb_file_s_extname().
* util.c (ruby_add_suffix): support arbitrary length of the suffix
to get rid of the potential buffer overflow.
reported by tarui.
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