Better use of character constants
diff --git a/googletest/test/gtest-port_test.cc b/googletest/test/gtest-port_test.cc
index 446660f..6ea607b 100644
--- a/googletest/test/gtest-port_test.cc
+++ b/googletest/test/gtest-port_test.cc
@@ -75,8 +75,8 @@
 }
 
 TEST(IsXDigitTest, ReturnsFalseForNarrowNonAscii) {
-  EXPECT_FALSE(IsXDigit(static_cast<char>(0x80u)));
-  EXPECT_FALSE(IsXDigit(static_cast<char>('0' | 0x80u)));
+  EXPECT_FALSE(IsXDigit('\x80'));
+  EXPECT_FALSE(IsXDigit(static_cast<char>('0' | '\x80')));
 }
 
 TEST(IsXDigitTest, WorksForWideAscii) {