use move in test_memory

debug/test_memory.cc

@@ -18,7 +18,7 @@ using std::string;
 using std::to_string;
 static std::string embeddedDir="/t/cryt/shadow";
 
-std::map<std::string,std::vector<std::string>> gfm;
+
 
 /*init global full backup. */
 static
@@ -26,6 +26,7 @@ void initGfb(vector<string> field_names,
              vector<int> field_types,
              vector<int>field_lengths,
                                      std::string db,std::string table){
+    std::map<std::string,std::vector<std::string>> gfm;
     std::string prefix = std::string("data/")+db+"/"+table+"/";
     for(unsigned int i=0u; i<field_names.size(); i++) {
         std::string filename = prefix + field_names[i];
@@ -36,25 +37,32 @@ void initGfb(vector<string> field_names,
             load_string_file(filename,column,field_lengths[i]);
         }
         gfm[field_names[i]] = std::move(column);
+//        vector<string>().swap(gfm[field_names[i]]);
     }//get memory 31%
+
     for(unsigned int i=0u; i<field_names.size(); i++) {
-        gfm.erase(field_names[i]);
+        vector<string>().swap(gfm[field_names[i]]);
     }
     return;
 }
 
-
+class token{
+public:
+    int a;
+    token():a(0){}
+};
 
 int
 main(int argc, char* argv[]){
-    vector<int> lengths{20,15,256,11};
+    vector<int> lengths{20,15,256,20};
     vector<int> types{8,8,253,8};
-    std::vector<std::string> names{"BLWQNYLYOWoEq",
-                                   "HZYMDVEERKoOrder",
-                                   "HEPOWBSYEVoADD",
-                                   "OHGNYTNLSCoASHE",
-                                   "cdb_saltNDFPJCCDAO"
+    std::vector<std::string> names{"JKIIHGGNTDoEq",
+                                   "UOURXXPAMUoOrder",
+                                   "WAVWPSYCINoADD",
+                                   "cdb_saltMAANVANOOE"
                                   };
+//    token * pp = new token[80000000];
+//    delete [] pp;
     initGfb(names, types, lengths, "micro_db", "int_table");
     return 0;
 }

wrapper/reuse.cc

@@ -434,7 +434,7 @@ void load_num_file(std::string filename,std::vector<std::string> &res){
     std::ifstream infile(filename);
     std::string line;
     while(std::getline(infile,line)){
-        res.push_back(line);
+        res.push_back(std::move(line));
     }
     infile.close();
 }
@@ -455,7 +455,7 @@ void load_string_file(std::string filename, std::vector<std::string> &res,unsign
     int fd = open(filename.c_str(),O_RDONLY);
     if(fd==-1) assert(0);//reading from -1 may cause errors
     while(read(fd,buf,length)!=0){
-        res.push_back(std::string(buf,length));
+        res.push_back(std::move(std::string(buf,length)));
     }
     close(fd);
 }