* pack.c (pack_pack): Warn when an invalid character is found in the

  format string when $VERBOSE is true.  [ruby-trunk - Feature #5219]
* pack.c (pack_unpack):  ditto
* test/ruby/test_pack.rb (class TestPack):  Test for warnings on
  invalid format characters.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/pack.c b/pack.c
index 78789889de..4a2d246174 100644
--- a/pack.c
+++ b/pack.c
@@ -1026,6 +1026,8 @@ pack_pack(VALUE ary, VALUE fmt)
 	    break;
 
 	  default:
+	    rb_warning("unknown pack directive '%c' in '%s'",
+		type, RSTRING_PTR(fmt));
 	    break;
 	}
     }
@@ -2143,6 +2145,8 @@ pack_unpack(VALUE str, VALUE fmt)
 	    break;
 
 	  default:
+	    rb_warning("unknown unpack directive '%c' in '%s'",
+		type, RSTRING_PTR(fmt));
 	    break;
 	}
     }