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The Ruby Programming Language

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random.c: coerce before check negative

* random.c (rb_random_ulong_limited): coerce before check negative.
  [Fixes GH-379]

git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
latest commit 26feae3958
Nobuyoshi Nakada nobu authored August 13, 2013
Octocat-spinner-32 benchmark
Octocat-spinner-32 bin
Octocat-spinner-32 bootstraptest
Octocat-spinner-32 cygwin
Octocat-spinner-32 defs
Octocat-spinner-32 doc
Octocat-spinner-32 enc
Octocat-spinner-32 ext
Octocat-spinner-32 include
Octocat-spinner-32 lib
Octocat-spinner-32 man
Octocat-spinner-32 misc
Octocat-spinner-32 missing
Octocat-spinner-32 nacl
Octocat-spinner-32 sample * ext/curses/curses.c: [DOC] Update location of samples July 29, 2013
Octocat-spinner-32 spec
Octocat-spinner-32 symbian Added HAVE_LABS and HAVE_LLABS to config.h November 13, 2010
Octocat-spinner-32 template * template/encdb.h.tmpl: define encoding index macros to use the index July 01, 2013
Octocat-spinner-32 test
Octocat-spinner-32 tool
Octocat-spinner-32 win32
Octocat-spinner-32 .document
Octocat-spinner-32 .editorconfig
Octocat-spinner-32 .gdbinit
Octocat-spinner-32 .gitignore
Octocat-spinner-32 * added for ruby-style. March 11, 2010
Octocat-spinner-32 .travis.yml update config files June 14, 2013
Octocat-spinner-32 BSDL
Octocat-spinner-32 COPYING
Octocat-spinner-32 COPYING.ja
Octocat-spinner-32 ChangeLog
Octocat-spinner-32 GPL
Octocat-spinner-32 KNOWNBUGS.rb
Octocat-spinner-32 LEGAL
Octocat-spinner-32 * (after-update): non-configure platforms don't need June 14, 2013
Octocat-spinner-32 NEWS
Octocat-spinner-32 README
Octocat-spinner-32 README.EXT
Octocat-spinner-32 README.EXT.ja
Octocat-spinner-32 README.ja
Octocat-spinner-32 addr2line.c
Octocat-spinner-32 addr2line.h
Octocat-spinner-32 array.c
Octocat-spinner-32 bignum.c
Octocat-spinner-32 class.c
Octocat-spinner-32 compar.c * compar.c (Comparable#==): fix typo. May 06, 2013
Octocat-spinner-32 compile.c
Octocat-spinner-32 complex.c
Octocat-spinner-32 * process.c (rb_clock_gettime): New method. August 11, 2013
Octocat-spinner-32 constant.h
Octocat-spinner-32 cont.c
Octocat-spinner-32 debug.c
Octocat-spinner-32 dir.c
Octocat-spinner-32 dln.c
Octocat-spinner-32 dln.h
Octocat-spinner-32 dln_find.c
Octocat-spinner-32 dmydln.c * encoding.c (rb_enc_codepoint_len): Use UNREACHABLE to avoid "control April 13, 2012
Octocat-spinner-32 dmyext.c no K&R style May 19, 2012
Octocat-spinner-32 encoding.c
Octocat-spinner-32 enum.c
Octocat-spinner-32 enumerator.c
Octocat-spinner-32 error.c
Octocat-spinner-32 eval.c
Octocat-spinner-32 eval_error.c
Octocat-spinner-32 eval_intern.h
Octocat-spinner-32 eval_jump.c
Octocat-spinner-32 file.c
Octocat-spinner-32 gc.c
Octocat-spinner-32 gc.h
Octocat-spinner-32 gem_prelude.rb
Octocat-spinner-32 golf_prelude.rb
Octocat-spinner-32 goruby.c
Octocat-spinner-32 hash.c
Octocat-spinner-32 ia64.s
Octocat-spinner-32 inits.c
Octocat-spinner-32 insns.def
Octocat-spinner-32 internal.h
Octocat-spinner-32 io.c * io.c (io_getpartial): use rb_str_locktmp_ensure(). July 28, 2013
Octocat-spinner-32 iseq.c
Octocat-spinner-32 iseq.h
Octocat-spinner-32 lex.c.blt
Octocat-spinner-32 load.c
Octocat-spinner-32 loadpath.c
Octocat-spinner-32 localeinit.c
Octocat-spinner-32 main.c * include/ruby/debug.h: introdudced. November 20, 2012
Octocat-spinner-32 marshal.c * bignum.c (MSB): Removed. June 25, 2013
Octocat-spinner-32 math.c
Octocat-spinner-32 method.h
Octocat-spinner-32 miniinit.c
Octocat-spinner-32 node.c
Octocat-spinner-32 node.h parse.y, vm_eval.c: file encoding in eval July 29, 2013
Octocat-spinner-32 numeric.c * numeric.c: [DOC] fix typo. August 10, 2013
Octocat-spinner-32 object.c
Octocat-spinner-32 pack.c
Octocat-spinner-32 parse.y
Octocat-spinner-32 prelude.rb
Octocat-spinner-32 probes.d
Octocat-spinner-32 probes_helper.h probes_helper.h: RUBY_DTRACE_HOOK December 11, 2012
Octocat-spinner-32 proc.c * proc.c: [DOC] rdoc code formatting August 10, 2013
Octocat-spinner-32 process.c * process.c: [DOC] RDoc formatting of Process.clock_gettime August 12, 2013
Octocat-spinner-32 random.c
Octocat-spinner-32 range.c
Octocat-spinner-32 rational.c
Octocat-spinner-32 re.c re.c: suppress warning August 09, 2013
Octocat-spinner-32 regcomp.c
Octocat-spinner-32 regenc.c
Octocat-spinner-32 regenc.h
Octocat-spinner-32 regerror.c
Octocat-spinner-32 regexec.c
Octocat-spinner-32 regint.h
Octocat-spinner-32 regparse.c
Octocat-spinner-32 regparse.h
Octocat-spinner-32 regsyntax.c
Octocat-spinner-32 ruby.c
Octocat-spinner-32 ruby_atomic.h
Octocat-spinner-32 safe.c
Octocat-spinner-32 signal.c
Octocat-spinner-32 siphash.c * regint.h: fix typo: _M_AMD86 -> _M_AMD64. April 10, 2013
Octocat-spinner-32 siphash.h
Octocat-spinner-32 sizes.c
Octocat-spinner-32 sparc.c * sparc.c: Use __asm__ instead of asm for gcc. April 27, 2013
Octocat-spinner-32 sprintf.c
Octocat-spinner-32 st.c
Octocat-spinner-32 strftime.c
Octocat-spinner-32 string.c
Octocat-spinner-32 struct.c struct.c: rb_struct_define_under August 03, 2013
Octocat-spinner-32 thread.c
Octocat-spinner-32 thread_native.h
Octocat-spinner-32 thread_pthread.c * thread_(pthread|win32).h: rename rb_thread_cond_t to July 23, 2013
Octocat-spinner-32 thread_pthread.h
Octocat-spinner-32 thread_win32.c
Octocat-spinner-32 thread_win32.h
Octocat-spinner-32 time.c
Octocat-spinner-32 timev.h
Octocat-spinner-32 transcode.c
Octocat-spinner-32 transcode_data.h
Octocat-spinner-32 util.c
Octocat-spinner-32 variable.c
Octocat-spinner-32 version.c
Octocat-spinner-32 version.h
Octocat-spinner-32 vm.c
Octocat-spinner-32 vm_backtrace.c
Octocat-spinner-32 vm_core.h * proc.c: add Binding#local_variable_get/set/defined? August 09, 2013
Octocat-spinner-32 vm_debug.h defines.h: RUBY_SYMBOL_EXPORT_{BEGIN,END} April 05, 2013
Octocat-spinner-32 vm_dump.c
Octocat-spinner-32 vm_eval.c
Octocat-spinner-32 vm_exec.c
Octocat-spinner-32 vm_exec.h
Octocat-spinner-32 vm_insnhelper.c
Octocat-spinner-32 vm_insnhelper.h
Octocat-spinner-32 vm_method.c
Octocat-spinner-32 vm_opts.h
Octocat-spinner-32 vm_trace.c
Octocat-spinner-32 vsnprintf.c
= What's Ruby

Ruby is the interpreted scripting language for quick and
easy object-oriented programming.  It has many features to
process text files and to do system management tasks (as in
Perl).  It is simple, straight-forward, and extensible.

== Features of Ruby

*   Simple Syntax
*   *Normal* Object-Oriented features(ex. class, method calls)
*   *Advanced* Object-Oriented features(ex. Mix-in, Singleton-method)
*   Operator Overloading
*   Exception Handling
*   Iterators and Closures
*   Garbage Collection
*   Dynamic Loading of Object files(on some architecture)
*   Highly Portable (works on many Unix-like/POSIX compatible platforms
    as well as Windows, Mac OS X, BeOS etc.)

== How to get Ruby

For a complete list of ways to install Ruby, including using third party
tools like rvm, see:

The Ruby distribution files can be found in the following FTP site:

The trunk of the Ruby source tree can be checked out with the
following command:

  $ svn co ruby

Or if you are using git then use the following command:

  $ git clone git://

There are some other branches under development.  Try the following
command and see the list of branches:

  $ svn ls

Or if you are using git then use the following command:

  $ git ls-remote git://

== Ruby home-page

The URL of the Ruby home-page is:

== Mailing list

There is a mailing list to talk about Ruby.
To subscribe this list, please send the following phrase

        subscribe YourFirstName YourFamilyName
        subscribe Joseph Smith

in the mail body (not subject) to the address <>.

== How to compile and install

This is what you need to do to compile and install Ruby:

0.   If you want to use Microsoft Visual C++ to compile ruby,
     read win32/README.win32 instead of this document.

1.   If +./configure+ does not exist or is older than,
     run autoconf to (re)generate configure.

2.   Run +./configure+, which will generate config.h and Makefile.

     Some C compiler flags may be added by default depending on your
     environment.  Specify <tt>optflags=..</tt> and <tt>warnflags=..</tt> as
     necessary to override them.

3.   Edit +defines.h+ if you need. Usually this step will not be needed.

4.   Remove comment mark(<tt>#</tt>) before the module names from +ext/Setup+
     (or add module names if not present), if you want to link modules

     If you don't want to compile non static extension modules
     (probably on architectures which does not allow dynamic loading),
     remove comment mark from the line "<tt>#option nodynamic</tt>" in

     Usually this step will not be needed.

5.   Run +make+.

6.   Optionally, run '<tt>make check</tt>' to check whether the compiled Ruby
     interpreter works well. If you see the message "<tt>check succeeded</tt>",
     your ruby works as it should (hopefully).

7.   Run '<tt>make install</tt>'

     This command will create following directories and install files
     onto them.

     * <tt>${DESTDIR}${prefix}/bin</tt>
     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}</tt>
     * <tt>${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
     * <tt>${DESTDIR}${prefix}/lib</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}</tt>
     * <tt>${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}</tt>
     * <tt>${DESTDIR}${prefix}/share/man/man1</tt>
     * <tt>${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system</tt>

     If Ruby's API version is '_x.y.z_', the <tt>${MAJOR}</tt> is '_x_', the
     <tt>${MINOR}</tt> is '_y_', and the <tt>${TEENY}</tt> is '_z_'.

     *NOTE*: teeny of the API version may be different from one of
     Ruby's program version

     You may have to be a super user to install ruby.

If you fail to compile ruby, please send the detailed error report with
the error log and machine/OS type, to help others.

Some extension libraries may not get compiled because of lack of
necessary external libraries and/or headers, then you will need to run
'<tt>make distclean-ext</tt>' to remove old configuration after
installing them in such case.

== Copying

See the file +COPYING+.

== Feedback

Questions about the Ruby language can be asked on the Ruby-Talk mailing list
( or on websites like

Bug reports should be filed at

== The Author

Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.


Local variables:
mode: rdoc
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