ICU-21679 avoid escape of U+FFFF in a character literal

diff --git a/icu4c/source/test/intltest/usettest.cpp b/icu4c/source/test/intltest/usettest.cpp
index b4bee76010759bc5a6259745826801e329f37e0d..8ab2fd8d4250d3601db4a48a109ab8e50c02b834 100644 (file)
--- a/icu4c/source/test/intltest/usettest.cpp
+++ b/icu4c/source/test/intltest/usettest.cpp
@@ -279,7 +279,7 @@ UnicodeSetTest::TestPatterns(void) {
     // Throw in a test of complement
     set.complement();
     UnicodeString exp;
-    exp.append((UChar)0x0000).append("aeeoouu").append((UChar)(u'z'+1)).append(u'\uFFFF');
+    exp.append((UChar)0x0000).append("aeeoouu").append((UChar)(u'z'+1)).append((UChar)0xFFFF);
     expectPairs(set, exp);
 }