cast unsigned vals back to signed to fix compiler warnings

chuckremes · chuckremes · commit 8374329d7b1a · 2016-03-24T14:15:59.000-05:00
diff --git a/machine/test/test_bignum.hpp b/machine/test/test_bignum.hpp
@@ -648,7 +648,7 @@ class TestBignum : public CxxTest::TestSuite, public VMTest {
     fix = neg_one->left_shift(state, width_minus1);
 
     TS_ASSERT(kind_of<Fixnum>(fix));
-    TS_ASSERT_EQUALS((0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
+    TS_ASSERT_EQUALS((native_int)(0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
 
     Integer* max_plus1 = one->left_shift(state, width);
 
@@ -676,7 +676,7 @@ class TestBignum : public CxxTest::TestSuite, public VMTest {
     fix = neg_one->right_shift(state, neg_width_minus1);
 
     TS_ASSERT(kind_of<Fixnum>(fix));
-    TS_ASSERT_EQUALS((0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
+    TS_ASSERT_EQUALS((native_int)(0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
 
     Integer* max_plus1 = one->right_shift(state, neg_width);
 
@@ -704,7 +704,7 @@ class TestBignum : public CxxTest::TestSuite, public VMTest {
     fix = as<Integer>(neg_two->pow(state, width_minus1));
 
     TS_ASSERT(kind_of<Fixnum>(fix));
-    TS_ASSERT_EQUALS((0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
+    TS_ASSERT_EQUALS((native_int)(0UL - 1L) << (FIXNUM_WIDTH-1), fix->to_native());
 
     Integer* max_plus1 = as<Integer>(two->pow(state, width));
 
@@ -719,7 +719,7 @@ class TestBignum : public CxxTest::TestSuite, public VMTest {
     big = as<Integer>(neg_two->pow(state, Fixnum::from(FIXNUM_WIDTH+1)));
 
     TS_ASSERT(kind_of<Bignum>(big));
-    TS_ASSERT_EQUALS((0ULL - 1LL) << (FIXNUM_WIDTH+1), as<Bignum>(big)->to_long_long());
+    TS_ASSERT_EQUALS((long long)(0ULL - 1LL) << (FIXNUM_WIDTH+1), as<Bignum>(big)->to_long_long());
   }
 
   void test_equal() {
