add UNREACHABLE_RETURN

Not every compilers understand that rb_raise does not return.  When a
function does not end with a return statement, such compilers can issue
warnings.  We would better tell them about reachabilities.

1 files changed, 2 insertions, 0 deletions

diff --git a/range.c b/range.c
index b00800b3fb..1903b0c1f8 100644
--- a/range.c
+++ b/range.c
@@ -836,6 +836,7 @@ range_each_bignum_endless(VALUE beg)
     for (;; beg = rb_big_plus(beg, INT2FIX(1))) {
         rb_yield(beg);
     }
+    UNREACHABLE;
 }
 
 RBIMPL_ATTR_NORETURN()
@@ -847,6 +848,7 @@ range_each_fixnum_endless(VALUE beg)
     }
 
     range_each_bignum_endless(LONG2NUM(RUBY_FIXNUM_MAX + 1));
+    UNREACHABLE;
 }
 
 static VALUE