From 4cf83d3736b0709eb3196f788127853f0304eecb Mon Sep 17 00:00:00 2001
From: Yue Wang <Moophyalan@gmail.com>
Date: Tue, 23 Jun 2015 02:28:50 +1200
Subject: [PATCH] Update ex6_17.cpp

---
 ch06/ex6_17.cpp | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/ch06/ex6_17.cpp b/ch06/ex6_17.cpp
index a5a99028..787ca525 100644
--- a/ch06/ex6_17.cpp
+++ b/ch06/ex6_17.cpp
@@ -1,27 +1,26 @@
 #include <iostream>
 #include <string>
-
 using std::cout; using std::endl; using std::string;
 
-bool hasUppercase(const string &str)
+bool any_capital(string const& str)
 {
-    for (auto c : str)
-        if (isupper(c)) return true;
+    for (auto ch : str)
+        if (isupper(ch)) return true;
     return false;
 }
 
-void makeLowercase(string &str)
+void to_lowercase(string& str)
 {
-    for (auto &c : str)
-        if (isupper(c)) c = tolower(c);
+    for (auto& ch : str) ch = tolower(ch);
 }
 
 int main()
 {
-    string str("Hello World!");
-    cout << hasUppercase(str) << endl;
-    makeLowercase(str);
-    cout << str << endl;
-    
+    string hello("Hello World!");
+    cout << any_capital(hello) << endl;
+
+    to_lowercase(hello);
+    cout << hello << endl;
+
     return 0;
 }