ngoto	2017-12-31 01:38:22 +0900 (Sun, 31 Dec 2017)

  New Revision: 61518

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61518

  Log:
    bit fields treating negative values should be declared as signed int
    
    * internal.h (struct vm_ifunc_argc): Bit fields are unsigned by default.
      For storing nagative values to bit fields, they must be declated as
      signed int. Fix multiple test failure observed by 32-bit binaries
      compiled with Oracle Developer Studio (Solaris Studio) 12.x on
      Solaris 10 on sparc architecture. [Bug #14260]

  Modified files:
    trunk/internal.h
Index: internal.h
===================================================================
--- internal.h	(revision 61517)
+++ internal.h	(revision 61518)
@@ -914,8 +914,8 @@ struct vm_throw_data { https://github.com/ruby/ruby/blob/trunk/internal.h#L914
 
 struct vm_ifunc_argc {
 #if SIZEOF_INT * 2 > SIZEOF_VALUE
-    int min: (SIZEOF_VALUE * CHAR_BIT) / 2;
-    int max: (SIZEOF_VALUE * CHAR_BIT) / 2;
+    signed int min: (SIZEOF_VALUE * CHAR_BIT) / 2;
+    signed int max: (SIZEOF_VALUE * CHAR_BIT) / 2;
 #else
     int min, max;
 #endif

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