* include/ruby/ruby.h (struct RBignum): embed digits in RBignum for

small bignums.

* bignum.c: RBignum embeded digits implemented.

* include/ruby/intern.h: declare rb_big_resize.

* gc.c: don't free embedded digits.

* numeric.c: replace direct bignum field accessor by abstract field
  accessor such as RBIGNUM(val)->sign to RBIGNUM_SIGN(val).

* sprintf.c: ditto.

* compar.c: ditto.

* marshal.c: ditto.

* random.c: ditto.

* .gdbinit: support embedded small bignums.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13330 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_integer.rb

@@ -2,6 +2,12 @@ require 'test/unit'
 
 class TestInteger < Test::Unit::TestCase
   VS = [
+    -0x1000000000000000000000000000000000000000000000002,
+    -0x1000000000000000000000000000000000000000000000001,
+    -0x1000000000000000000000000000000000000000000000000,
+    -0x1000000000000000000000002,
+    -0x1000000000000000000000001,
+    -0x1000000000000000000000000,
     -0x10000000000000002,
     -0x10000000000000001,
     -0x10000000000000000,
@@ -89,6 +95,12 @@ class TestInteger < Test::Unit::TestCase
     0xffffffffffffffff,
     0x10000000000000000,
     0x10000000000000001,
+    0xffffffffffffffffffffffff,
+    0x1000000000000000000000000,
+    0x1000000000000000000000001,
+    0xffffffffffffffffffffffffffffffffffffffffffffffff,
+    0x1000000000000000000000000000000000000000000000000,
+    0x1000000000000000000000000000000000000000000000001
   ]
 
   #VS.map! {|v| 0x4000000000000000.coerce(v)[0] }