2 files changed, 9 insertions, 9 deletions
diff --git a/src/util/option_parse.cc b/src/util/option_parse.cc
index f9185fb..b294b75 100644
--- a/src/util/option_parse.cc
+++ b/src/util/option_parse.cc
@@ -20,7 +20,7 @@ namespace ov4
 void exe_option(char **c_argv)
 {
     vector<string> argv;
-    argv2string(&argv, c_argv);
+    argv2string(argv, c_argv);
 
     for (auto c : argv)
     {
diff --git a/src/util/string.cc b/src/util/string.cc
index cc0de34..c486a4f 100644
--- a/src/util/string.cc
+++ b/src/util/string.cc
@@ -5,33 +5,33 @@ using namespace std;
 namespace ov4
 {
 
-void string2argv(const vector<string> * const s, char **argv)
+void string2argv(const vector<string> &s, char **argv)
 {
 
     // pointers [0, size)
     // nullptr [size]
     // data  [size+1, ...)
 
-    char *p = (char*)(argv + s->size() + 1);
+    char *p = (char*)(argv + s.size() + 1);
 
-    argv[s->size()] = nullptr;
+    argv[s.size()] = nullptr;
 
-    for (size_t i = 0; i < s->size(); i++)
+    for (size_t i = 0; i < s.size(); i++)
     {
-        strcpy(p, (*s)[i].c_str());
+        strcpy(p, s[i].c_str());
         argv[i] = p;
-        p += (*s)[i].size() + 1; // for '\0'
+        p += s[i].size() + 1; // for '\0'
     }
 }
 
-void argv2string(vector<string> *s, const char * const * argv)
+void argv2string(vector<string> &s, const char * const * argv)
 {
     if (argv == nullptr) return; 
     
     for (size_t i = 0; true; i++)
     {
         if (argv[i] == nullptr) return;
-        s->push_back(argv[i]);
+        s.push_back(argv[i]);
     }
 }