Merge pull request #121 from yossigo/fix/compile-warnings

Fix C++ compiler warnings.

Author: yossigo

memtier_benchmark.cpp

@@ -1208,9 +1208,7 @@ static void cleanup_openssl(void)
 
 int main(int argc, char *argv[])
 {
-    struct benchmark_config cfg;
-
-    memset(&cfg, 0, sizeof(struct benchmark_config));
+    benchmark_config cfg = benchmark_config();
     cfg.arbitrary_commands = new arbitrary_command_list();
 
     if (config_parse_args(argc, argv, &cfg) < 0) {

obj_gen.cpp

@@ -237,10 +237,10 @@ void object_generator::alloc_value_buffer(void)
                 assert(m_random_fd != -1);
             }
 
-            char buf1[64];
-            char buf2[64];
-            int buf1_idx = sizeof(buf1);
-            int buf2_idx = sizeof(buf2);
+            char buf1[64] = { 0 };
+            char buf2[64] = { 0 };
+            unsigned int buf1_idx = sizeof(buf1);
+            unsigned int buf2_idx = sizeof(buf2);
             char *d = m_value_buffer;
             int ret;
             int iter = 0;
@@ -249,7 +249,7 @@ void object_generator::alloc_value_buffer(void)
                 if (buf1_idx == sizeof(buf1)) {
                     buf1_idx = 0;
                     buf2_idx++;
-                    if (buf2_idx == sizeof(buf2)) {
+                    if (buf2_idx >= sizeof(buf2)) {
                         iter++;
                         if (iter == 20) {
                             ret = read(m_random_fd, buf1, sizeof(buf1));