Update ex3_5b.cpp

wenliang · Jun 21, 2015 · c49dd60 · c49dd60
1 parent c45c0d5
commit c49dd60
Showing 1 changed file with 4 additions and 12 deletions.
diff --git a/ch03/ex3_5b.cpp b/ch03/ex3_5b.cpp
@@ -9,17 +9,9 @@ using std::endl;
 
 int main()
 {
-  string largeStr;
-  string str;
-  while (cin >> str)
-  {
-    if (largeStr.empty())
-      largeStr += str;
-    else
-      largeStr += " " + str;
-  }
+    string str;
+    for (string buff; cin >> buff; str += (str.empty() ? "" : " ") + buff);
+    cout << "The concatenated string is " << str << endl;
 
-  cout << "The concatenated string is " << largeStr << endl;
-
-  return 0;
+    return 0;
 }