nobu	2011-12-11 10:37:50 +0900 (Sun, 11 Dec 2011)

  New Revision: 34007

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=34007

  Log:
    * object.c (rb_check_to_int): new function to convert a VALUE to
      an Integer if possible, but returns nil instead of raising an
      exception otherwise.

  Modified files:
    trunk/ChangeLog
    trunk/include/ruby/intern.h
    trunk/object.c

Index: include/ruby/intern.h
===================================================================
--- include/ruby/intern.h	(revision 34006)
+++ include/ruby/intern.h	(revision 34007)
@@ -553,6 +553,7 @@
 VALUE rb_check_to_integer(VALUE, const char *);
 VALUE rb_check_to_float(VALUE);
 VALUE rb_to_int(VALUE);
+VALUE rb_check_to_int(VALUE);
 VALUE rb_Integer(VALUE);
 VALUE rb_to_float(VALUE);
 VALUE rb_Float(VALUE);
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 34006)
+++ ChangeLog	(revision 34007)
@@ -1,3 +1,9 @@
+Sun Dec 11 10:37:47 2011  Nobuyoshi Nakada  <nobu@r...>
+
+	* object.c (rb_check_to_int): new function to convert a VALUE to
+	  an Integer if possible, but returns nil instead of raising an
+	  exception otherwise.
+
 Sun Dec 11 10:34:39 2011  Nobuyoshi Nakada  <nobu@r...>
 
 	* process.c (rb_exit_status_code): extract from rb_f_exit_bang and
Index: object.c
===================================================================
--- object.c	(revision 34006)
+++ object.c	(revision 34007)
@@ -2187,6 +2187,12 @@
     return rb_to_integer(val, "to_int");
 }
 
+VALUE
+rb_check_to_int(VALUE val)
+{
+    return rb_check_to_integer(val, "to_int");
+}
+
 static VALUE
 rb_convert_to_integer(VALUE val, int base)
 {

--
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