Fix index type for bitfield. (#7541)

2022-01-05 19:23:29 +08:00
parent 0df2ae63c7
commit 91c1a1c52f
2 changed files with 23 additions and 14 deletions
--- a/tests/cpp/common/test_bitfield.cc
+++ b/tests/cpp/common/test_bitfield.cc
@@ -38,6 +38,14 @@ TEST(BitField, Check) {
      ASSERT_FALSE(bits.Check(i));
    }
  }
+
+  {
+    // regression test for correct index type.
+    std::vector<RBitField8::value_type> storage(33, 0);
+    storage[32] = static_cast<uint8_t>(1);
+    auto bits = RBitField8({storage.data(), storage.size()});
+    ASSERT_TRUE(bits.Check(256));
+  }
 }

 template <typename BitFieldT, typename VT = typename BitFieldT::value_type>