diff --git a/ChangeLog b/ChangeLog
index 54b20f24c6cf0a..814985bc244480 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Fri Feb 17 11:20:53 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+
+	* util.c (ruby_strtod): Float("1e") should fail. [ruby-core:7330]
+
+	* pack.c (EXTEND32): unpack("l") did not work where sizeof(long) != 4.
+	  [ruby-talk:180024]
+
+	* pack.c (pack_unpack): fixed integer overflow on template "w".
+	  [ruby-talk:180126]
+
 Fri Feb 17 09:39:29 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* eval.c (rb_thread_wait_for): sleep should always sleep for
diff --git a/pack.c b/pack.c
index f475f26f9bbbe8..b98a1209e30c8c 100644
--- a/pack.c
+++ b/pack.c
@@ -345,11 +345,11 @@ num2i32(VALUE x)
     return 0;			/* not reached */
 }
 
-#if SIZEOF_LONG == SIZE32 || SIZEOF_INT == SIZE32
+#if SIZEOF_LONG == SIZE32
 # define EXTEND32(x) 
 #else
 /* invariant in modulo 1<<31 */
-# define EXTEND32(x) do {if (!natint) {(x) = (I32)(((1<<31)-1-(x))^~(~0<<31));}} while(0)
+# define EXTEND32(x) do { if (!natint) {(x) = (((1L<<31)-1-(x))^~(~0L<<31));}} while(0)
 #endif
 #if SIZEOF_SHORT == SIZE16
 # define EXTEND16(x) 
@@ -1937,7 +1937,7 @@ pack_unpack(VALUE str, VALUE fmt)
 	  case 'w':
 	    {
 		unsigned long ul = 0;
-		unsigned long ulmask = 0xfeL << ((sizeof(unsigned long) - 1) * 8);
+		unsigned long ulmask = 0xfeUL << ((sizeof(unsigned long) - 1) * 8);
 
 		while (len > 0 && s < send) {
 		    ul <<= 7;
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index fb180ff81b8da6..63979b5be0d3df 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -84,6 +84,7 @@ def test_strtod
     assert_raise(ArgumentError){Float("+.")}
     assert_raise(ArgumentError){Float("-")}
     assert_raise(ArgumentError){Float("-.")}
+    assert_raise(ArgumentError){Float("1e")}
     # add expected behaviour here.
   end
 end
diff --git a/test/ruby/test_pack.rb b/test/ruby/test_pack.rb
index a9f15599e42ed9..e67465b33a56b8 100644
--- a/test/ruby/test_pack.rb
+++ b/test/ruby/test_pack.rb
@@ -15,6 +15,9 @@ def test_pack
 
     $x = [-1073741825]
     assert_equal($x, $x.pack("q").unpack("q"))
+
+    $x = [-1]
+    assert_equal($x, $x.pack("l").unpack("l"))
   end
 
   def test_pack_N
diff --git a/util.c b/util.c
index 5eaee4cb0b5c74..953927d1457590 100644
--- a/util.c
+++ b/util.c
@@ -848,9 +848,15 @@ ruby_strtod(
 		}
 		expSign = FALSE;
 	    }
-	    while (ISDIGIT(*p)) {
-		exp = exp * 10 + (*p - '0');
-		p += 1;
+	    if (ISDIGIT(*p)) {
+		do {
+		    exp = exp * 10 + (*p - '0');
+		    p += 1;
+		}
+		while (ISDIGIT(*p));
+	    }
+	    else {
+		p = pExp;
 	    }
 	}
 	if (expSign) {