Use size_t instead of C integer types.

PiperOrigin-RevId: 368919557

7 files changed, 23 insertions, 23 deletions

diff --git a/test/syscalls/linux/proc_net.cc b/test/syscalls/linux/proc_net.cc
index ed30d6253..04fecc02e 100644
--- a/test/syscalls/linux/proc_net.cc
+++ b/test/syscalls/linux/proc_net.cc
@@ -419,14 +419,14 @@ TEST(ProcNetSnmp, CheckNetStat) {
   int name_count = 0;
   int value_count = 0;
   std::vector<absl::string_view> lines = absl::StrSplit(contents, '\n');
-  for (long unsigned int i = 0; i + 1 < lines.size(); i += 2) {
+  for (size_t i = 0; i + 1 < lines.size(); i += 2) {
     std::vector<absl::string_view> names =
         absl::StrSplit(lines[i], absl::ByAnyChar("\t "));
     std::vector<absl::string_view> values =
         absl::StrSplit(lines[i + 1], absl::ByAnyChar("\t "));
     EXPECT_EQ(names.size(), values.size()) << " mismatch in lines '" << lines[i]
                                            << "' and '" << lines[i + 1] << "'";
-    for (long unsigned int j = 0; j < names.size() && j < values.size(); ++j) {
+    for (size_t j = 0; j < names.size() && j < values.size(); ++j) {
       if (names[j] == "TCPOrigDataSent" || names[j] == "TCPSynRetrans" ||
           names[j] == "TCPDSACKRecv" || names[j] == "TCPDSACKOfoRecv") {
         ++name_count;
@@ -456,14 +456,14 @@ TEST(ProcNetSnmp, CheckSnmp) {
   int name_count = 0;
   int value_count = 0;
   std::vector<absl::string_view> lines = absl::StrSplit(contents, '\n');
-  for (long unsigned int i = 0; i + 1 < lines.size(); i += 2) {
+  for (size_t i = 0; i + 1 < lines.size(); i += 2) {
     std::vector<absl::string_view> names =
         absl::StrSplit(lines[i], absl::ByAnyChar("\t "));
     std::vector<absl::string_view> values =
         absl::StrSplit(lines[i + 1], absl::ByAnyChar("\t "));
     EXPECT_EQ(names.size(), values.size()) << " mismatch in lines '" << lines[i]
                                            << "' and '" << lines[i + 1] << "'";
-    for (long unsigned int j = 0; j < names.size() && j < values.size(); ++j) {
+    for (size_t j = 0; j < names.size() && j < values.size(); ++j) {
       if (names[j] == "RetransSegs") {
         ++name_count;
         int64_t val;
diff --git a/test/syscalls/linux/proc_net_unix.cc b/test/syscalls/linux/proc_net_unix.cc
index d61d94309..cf3371a43 100644
--- a/test/syscalls/linux/proc_net_unix.cc
+++ b/test/syscalls/linux/proc_net_unix.cc
@@ -182,7 +182,7 @@ PosixErrorOr<std::vector<UnixEntry>> ProcNetUnixEntries() {
 // Returns true on match, and sets 'match' to point to the matching entry.
 bool FindBy(std::vector<UnixEntry> entries, UnixEntry* match,
             std::function<bool(const UnixEntry&)> predicate) {
-  for (long unsigned int i = 0; i < entries.size(); ++i) {
+  for (size_t i = 0; i < entries.size(); ++i) {
     if (predicate(entries[i])) {
       *match = entries[i];
       return true;
diff --git a/test/syscalls/linux/proc_pid_uid_gid_map.cc b/test/syscalls/linux/proc_pid_uid_gid_map.cc
index af052a63c..c030592c8 100644
--- a/test/syscalls/linux/proc_pid_uid_gid_map.cc
+++ b/test/syscalls/linux/proc_pid_uid_gid_map.cc
@@ -203,8 +203,9 @@ TEST_P(ProcSelfUidGidMapTest, IdentityMapOwnID) {
   EXPECT_THAT(
       InNewUserNamespaceWithMapFD([&](int fd) {
         DenySelfSetgroups();
-        TEST_PCHECK(static_cast<long unsigned int>(
-                        write(fd, line.c_str(), line.size())) == line.size());
+        size_t n;
+        TEST_PCHECK((n = write(fd, line.c_str(), line.size())) != -1);
+        TEST_CHECK(n == line.size());
       }),
       IsPosixErrorOkAndHolds(0));
 }
@@ -221,8 +222,9 @@ TEST_P(ProcSelfUidGidMapTest, TrailingNewlineAndNULIgnored) {
         DenySelfSetgroups();
         // The write should return the full size of the write, even though
         // characters after the NUL were ignored.
-        TEST_PCHECK(static_cast<long unsigned int>(
-                        write(fd, line.c_str(), line.size())) == line.size());
+        size_t n;
+        TEST_PCHECK((n = write(fd, line.c_str(), line.size())) != -1);
+        TEST_CHECK(n == line.size());
       }),
       IsPosixErrorOkAndHolds(0));
 }
diff --git a/test/syscalls/linux/socket.cc b/test/syscalls/linux/socket.cc
index a3762c7a9..7b966484d 100644
--- a/test/syscalls/linux/socket.cc
+++ b/test/syscalls/linux/socket.cc
@@ -47,7 +47,7 @@ TEST(SocketTest, ProtocolUnix) {
       {AF_UNIX, SOCK_SEQPACKET, PF_UNIX},
       {AF_UNIX, SOCK_DGRAM, PF_UNIX},
   };
-  for (long unsigned int i = 0; i < ABSL_ARRAYSIZE(tests); i++) {
+  for (size_t i = 0; i < ABSL_ARRAYSIZE(tests); i++) {
     ASSERT_NO_ERRNO_AND_VALUE(
         Socket(tests[i].domain, tests[i].type, tests[i].protocol));
   }
@@ -60,7 +60,7 @@ TEST(SocketTest, ProtocolInet) {
       {AF_INET, SOCK_DGRAM, IPPROTO_UDP},
       {AF_INET, SOCK_STREAM, IPPROTO_TCP},
   };
-  for (long unsigned int i = 0; i < ABSL_ARRAYSIZE(tests); i++) {
+  for (size_t i = 0; i < ABSL_ARRAYSIZE(tests); i++) {
     ASSERT_NO_ERRNO_AND_VALUE(
         Socket(tests[i].domain, tests[i].type, tests[i].protocol));
   }
diff --git a/test/syscalls/linux/socket_bind_to_device_distribution.cc b/test/syscalls/linux/socket_bind_to_device_distribution.cc
index 73b0d2546..3b108cbd3 100644
--- a/test/syscalls/linux/socket_bind_to_device_distribution.cc
+++ b/test/syscalls/linux/socket_bind_to_device_distribution.cc
@@ -166,7 +166,7 @@ TEST_P(BindToDeviceDistributionTest, Tcp) {
   std::vector<std::unique_ptr<ScopedThread>> listen_threads(
       listener_fds.size());
 
-  for (long unsigned int i = 0; i < listener_fds.size(); i++) {
+  for (size_t i = 0; i < listener_fds.size(); i++) {
     listen_threads[i] = absl::make_unique<ScopedThread>(
         [&listener_fds, &accept_counts, &connects_received, i,
          kConnectAttempts]() {
@@ -218,7 +218,7 @@ TEST_P(BindToDeviceDistributionTest, Tcp) {
     listen_thread->Join();
   }
   // Check that connections are distributed correctly among listening sockets.
-  for (long unsigned int i = 0; i < accept_counts.size(); i++) {
+  for (size_t i = 0; i < accept_counts.size(); i++) {
     EXPECT_THAT(
         accept_counts[i],
         EquivalentWithin(static_cast<int>(kConnectAttempts *
@@ -289,7 +289,7 @@ TEST_P(BindToDeviceDistributionTest, Udp) {
   std::vector<std::unique_ptr<ScopedThread>> receiver_threads(
       listener_fds.size());
 
-  for (long unsigned int i = 0; i < listener_fds.size(); i++) {
+  for (size_t i = 0; i < listener_fds.size(); i++) {
     receiver_threads[i] = absl::make_unique<ScopedThread>(
         [&listener_fds, &packets_per_socket, &packets_received, i]() {
           do {
@@ -346,7 +346,7 @@ TEST_P(BindToDeviceDistributionTest, Udp) {
     receiver_thread->Join();
   }
   // Check that packets are distributed correctly among listening sockets.
-  for (long unsigned int i = 0; i < packets_per_socket.size(); i++) {
+  for (size_t i = 0; i < packets_per_socket.size(); i++) {
     EXPECT_THAT(
         packets_per_socket[i],
         EquivalentWithin(static_cast<int>(kConnectAttempts *
diff --git a/test/syscalls/linux/socket_ipv4_udp_unbound_netlink.cc b/test/syscalls/linux/socket_ipv4_udp_unbound_netlink.cc
index 410e06f40..020ce5d6e 100644
--- a/test/syscalls/linux/socket_ipv4_udp_unbound_netlink.cc
+++ b/test/syscalls/linux/socket_ipv4_udp_unbound_netlink.cc
@@ -171,7 +171,7 @@ TEST_P(IPv4UDPUnboundSocketNetlinkTest, ReuseAddrSubnetDirectedBroadcast) {
 
   // Broadcasts from each socket should be received by every socket (including
   // the sending socket).
-  for (long unsigned int w = 0; w < socks.size(); w++) {
+  for (size_t w = 0; w < socks.size(); w++) {
     auto& w_sock = socks[w];
     ASSERT_THAT(RetryEINTR(sendto)(w_sock->get(), send_buf, kSendBufSize, 0,
                                    AsSockAddr(&broadcast_address.addr),
@@ -180,7 +180,7 @@ TEST_P(IPv4UDPUnboundSocketNetlinkTest, ReuseAddrSubnetDirectedBroadcast) {
         << "write socks[" << w << "]";
 
     // Check that we received the packet on all sockets.
-    for (long unsigned int r = 0; r < socks.size(); r++) {
+    for (size_t r = 0; r < socks.size(); r++) {
       auto& r_sock = socks[r];
 
       struct pollfd poll_fd = {r_sock->get(), POLLIN, 0};
diff --git a/test/syscalls/linux/tuntap.cc b/test/syscalls/linux/tuntap.cc
index 93ee11870..6e3a00d2c 100644
--- a/test/syscalls/linux/tuntap.cc
+++ b/test/syscalls/linux/tuntap.cc
@@ -349,9 +349,8 @@ TEST_F(TuntapTest, PingKernel) {
   };
   while (1) {
     inpkt r = {};
-    int nread = read(fd.get(), &r, sizeof(r));
-    EXPECT_THAT(nread, SyscallSucceeds());
-    long unsigned int n = static_cast<long unsigned int>(nread);
+    size_t n;
+    EXPECT_THAT(n = read(fd.get(), &r, sizeof(r)), SyscallSucceeds());
 
     if (n < sizeof(pihdr)) {
       std::cerr << "Ignored packet, protocol: " << r.pi.pi_protocol
@@ -408,9 +407,8 @@ TEST_F(TuntapTest, SendUdpTriggersArpResolution) {
   };
   while (1) {
     inpkt r = {};
-    int nread = read(fd.get(), &r, sizeof(r));
-    EXPECT_THAT(nread, SyscallSucceeds());
-    long unsigned int n = static_cast<long unsigned int>(nread);
+    size_t n;
+    EXPECT_THAT(n = read(fd.get(), &r, sizeof(r)), SyscallSucceeds());
 
     if (n < sizeof(pihdr)) {
       std::cerr << "Ignored packet, protocol: " << r.pi.pi_protocol