Fix handling of uintptr_t

test/format-impl-test.cc

@@ -257,7 +257,7 @@ TEST(UtilTest, CountDigits) {
 TEST(UtilTest, WriteUIntPtr) {
   fmt::memory_buffer buf;
   fmt::writer writer(buf);
-  writer.write_pointer(fmt::internal::bit_cast<fmt::internal::uintptr_t>(
+  writer.write_pointer(fmt::internal::bit_cast<fmt::internal::uintptr>(
                            reinterpret_cast<void*>(0xface)),
                        nullptr);
   EXPECT_EQ("0xface", to_string(buf));