* string.c (rb_str_new2): NULL pointer check added.

* class.c (rb_define_module_under): should locate predefined
  module using rb_const_defined_at().


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@1969 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/string.c b/string.c
index 49b44fa85..77794d984 100644
--- a/string.c
+++ b/string.c
@@ -80,6 +80,9 @@ VALUE
 rb_str_new2(ptr)
     const char *ptr;
 {
+    if (!ptr) {
+	rb_raise(rb_eArgError, "NULL pointer given");
+    }
     return rb_str_new(ptr, strlen(ptr));
 }