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-rw-r--r--test/cpp/interop/http2_client.cc2
-rw-r--r--test/cpp/interop/stress_test.cc2
2 files changed, 2 insertions, 2 deletions
diff --git a/test/cpp/interop/http2_client.cc b/test/cpp/interop/http2_client.cc
index 1e04e57d09..2de7abcf17 100644
--- a/test/cpp/interop/http2_client.cc
+++ b/test/cpp/interop/http2_client.cc
@@ -217,7 +217,7 @@ int main(int argc, char** argv) {
"goaway", "max_streams", "ping",
"rst_after_data", "rst_after_header", "rst_during_data"};
char* joined_testcases =
- gpr_strjoin_sep(testcases, GPR_ARRAY_SIZE(testcases), "\n", NULL);
+ gpr_strjoin_sep(testcases, GPR_ARRAY_SIZE(testcases), "\n", nullptr);
gpr_log(GPR_ERROR, "Unsupported test case %s. Valid options are\n%s",
FLAGS_test_case.c_str(), joined_testcases);
diff --git a/test/cpp/interop/stress_test.cc b/test/cpp/interop/stress_test.cc
index 991fc88ad2..028ff11b20 100644
--- a/test/cpp/interop/stress_test.cc
+++ b/test/cpp/interop/stress_test.cc
@@ -230,7 +230,7 @@ int main(int argc, char** argv) {
log_level = FLAGS_log_level;
gpr_set_log_function(TestLogFunction);
- srand(time(NULL));
+ srand(time(nullptr));
// Parse the server addresses
std::vector<grpc::string> server_addresses;