diff --git a/tests/malloc_test.cpp b/tests/malloc_test.cpp
index 14a426f..2b48d85 100644
--- a/tests/malloc_test.cpp
+++ b/tests/malloc_test.cpp
@@ -935,7 +935,8 @@
   size_t expected_alignment = alignof(Type);
   if (expected_alignment != 0) {
     ASSERT_EQ(0U, (expected_alignment - 1) & reinterpret_cast<uintptr_t>(floating))
-        << "Expected alignment " << expected_alignment << " ptr value " << floating;
+        << "Expected alignment " << expected_alignment << " ptr value "
+        << static_cast<void*>(floating);
   }
 }
 
diff --git a/tests/wctype_test.cpp b/tests/wctype_test.cpp
index 85a46aa..0f07956 100644
--- a/tests/wctype_test.cpp
+++ b/tests/wctype_test.cpp
@@ -35,20 +35,24 @@
                          const wchar_t* falses) {
   UtfLocale l;
   for (const wchar_t* p = trues; *p; ++p) {
-    if (!have_dl() && *p > 0x7f) {
-      GTEST_LOG_(INFO) << "skipping unicode test " << *p;
+    const wchar_t val_ch = *p;
+    const int val_int = static_cast<int>(val_ch);
+    if (!have_dl() && val_ch > 0x7f) {
+      GTEST_LOG_(INFO) << "skipping unicode test " << val_int;
       continue;
     }
-    EXPECT_TRUE(fn(*p)) << *p;
-    EXPECT_TRUE(fn_l(*p, l.l)) << *p;
+    EXPECT_TRUE(fn(val_ch)) << val_int;
+    EXPECT_TRUE(fn_l(val_ch, l.l)) << val_int;
   }
   for (const wchar_t* p = falses; *p; ++p) {
-    if (!have_dl() && *p > 0x7f) {
-      GTEST_LOG_(INFO) << "skipping unicode test " << *p;
+    const wchar_t val_ch = *p;
+    const int val_int = static_cast<int>(val_ch);
+    if (!have_dl() && val_ch > 0x7f) {
+      GTEST_LOG_(INFO) << "skipping unicode test " << val_int;
       continue;
     }
-    EXPECT_FALSE(fn(*p)) << *p;
-    EXPECT_FALSE(fn_l(*p, l.l)) << *p;
+    EXPECT_FALSE(fn(val_ch)) << val_int;
+    EXPECT_FALSE(fn_l(val_ch, l.l)) << val_int;
   }
 }