akr	2013-07-10 22:46:38 +0900 (Wed, 10 Jul 2013)

  New Revision: 41899

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41899

  Log:
    * bignum.c: Add a static assertion for RBIGNUM_EMBED_LEN_MAX.

  Modified files:
    trunk/ChangeLog
    trunk/bignum.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 41898)
+++ ChangeLog	(revision 41899)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Wed Jul 10 22:44:19 2013  Tanaka Akira  <akr@f...>
+
+	* bignum.c: Add a static assertion for RBIGNUM_EMBED_LEN_MAX.
+
 Wed Jul 10 22:31:25 2013  Masaki Matsushita  <glass.saga@g...>
 
 	* string.c (rb_str_index): cache single byte flag and some
Index: bignum.c
===================================================================
--- bignum.c	(revision 41898)
+++ bignum.c	(revision 41899)
@@ -45,6 +45,7 @@ static VALUE big_three = Qnil; https://github.com/ruby/ruby/blob/trunk/bignum.c#L45
 #endif
 
 STATIC_ASSERT(sizeof_bdigit_dbl, sizeof(BDIGIT_DBL) == SIZEOF_BDIGIT_DBL);
+STATIC_ASSERT(rbignum_embed_len_max, RBIGNUM_EMBED_LEN_MAX <= (RBIGNUM_EMBED_LEN_MASK >> RBIGNUM_EMBED_LEN_SHIFT));
 
 #ifdef WORDS_BIGENDIAN
 #   define HOST_BIGENDIAN_P 1

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