Add type cast to fix build error with "-Wsign-compare" cflag.

There is build error if "-Wsign-compare" is defined in cflags.
Also add "-Wsign-compare" to Android.bp

Test: Build

Change-Id: If41da96ec521a0d2dcddf660e7effa218c99810d
Signed-off-by: Sehee Park <sehee32.park@samsung.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/libnetdutils/InternetAddressesTest.cpp b/libnetdutils/InternetAddressesTest.cpp
index c63ecc5be..59d821072 100644
--- a/libnetdutils/InternetAddressesTest.cpp
+++ b/libnetdutils/InternetAddressesTest.cpp
@@ -130,12 +130,12 @@ TEST(IPAddressTest, GamutOfOperators) {
 TEST(IPAddressTest, ScopeIds) {
     // Scope IDs ignored for IPv4 addresses.
     const IPAddress ones(IPV4_ONES);
-    EXPECT_EQ(0, ones.scope_id());
+    EXPECT_EQ(0U, ones.scope_id());
     const IPAddress ones22(ones, 22);
-    EXPECT_EQ(0, ones22.scope_id());
+    EXPECT_EQ(0U, ones22.scope_id());
     EXPECT_EQ(ones, ones22);
     const IPAddress ones23(ones, 23);
-    EXPECT_EQ(0, ones23.scope_id());
+    EXPECT_EQ(0U, ones23.scope_id());
     EXPECT_EQ(ones22, ones23);
 
     EXPECT_EQ("fe80::1%22", IPAddress(FE80_1, 22).toString());
@@ -144,7 +144,7 @@ TEST(IPAddressTest, ScopeIds) {
     // Verify that given an IPAddress with a scope_id an address without a
     // scope_id can be constructed (just in case it's useful).
     const IPAddress fe80_intf22(FE80_1, 22);
-    EXPECT_EQ(22, fe80_intf22.scope_id());
+    EXPECT_EQ(22U, fe80_intf22.scope_id());
     EXPECT_EQ(fe80_intf22, IPAddress(fe80_intf22));
     EXPECT_EQ(IPAddress(FE80_1), IPAddress(fe80_intf22, 0));
 }
@@ -384,7 +384,7 @@ TEST(IPPrefixTest, TruncationOther) {
     };
 
     int totalTests = 0;
-    for (int i = 0; i < arraysize(testExpectations); i++, totalTests++) {
+    for (unsigned int i = 0; i < arraysize(testExpectations); i++, totalTests++) {
         IPAddress ip;
         EXPECT_TRUE(IPAddress::forString(testExpectations[i].ip, &ip))
                 << "Failed to parse IP address " << testExpectations[i].ip;
@@ -400,7 +400,7 @@ TEST(IPPrefixTest, TruncationOther) {
         EXPECT_EQ(ipTruncated, prefix.ip())
                 << "Unexpected IP truncation: " << prefix.ip() << ", expected: " << ipTruncated;
     }
-    EXPECT_EQ(arraysize(testExpectations), totalTests);
+    EXPECT_EQ(static_cast<int>(arraysize(testExpectations)), totalTests);
 }
 
 TEST(IPPrefixTest, GamutOfOperators) {