Change typedef to using.

Conflicts:
	src/ripple/app/TODO.md
	src/ripple/app/ledger/Ledger.h
	src/ripple/protocol/Protocol.h

src/ripple/json/impl/json_batchallocator.h

@@ -40,7 +40,7 @@ template < typename AllocatedType
 class BatchAllocator
 {
 public:
-    typedef AllocatedType Type;
+    using Type = AllocatedType;
 
     BatchAllocator ( unsigned int objectsPerPage = 255 )
         : freeHead_ ( 0 )

src/ripple/json/json_forwards.h

@@ -24,8 +24,8 @@ namespace Json
 {
 
 // value.h
-typedef int Int;
-typedef unsigned int UInt;
+using Int = int;
+using UInt = unsigned int;
 class StaticString;
 class Value;
 class ValueIteratorBase;

src/ripple/json/json_reader.h

@@ -36,8 +36,8 @@ namespace Json
 class Reader
 {
 public:
-    typedef char Char;
-    typedef const Char* Location;
+    using Char = char;
+    using Location = const Char*;
 
     /** \brief Constructs a Reader allowing all features
      * for parsing.
@@ -107,7 +107,7 @@ private:
         Location extra_;
     };
 
-    typedef std::deque<ErrorInfo> Errors;
+    using Errors = std::deque<ErrorInfo>;
 
     bool expectToken ( TokenType type, Token& token, const char* message );
     bool readToken ( Token& token );
@@ -150,7 +150,7 @@ private:
     std::string getLocationLineAndColumn ( Location location ) const;
     void skipCommentTokens ( Token& token );
 
-    typedef std::stack<Value*> Nodes;
+    using Nodes = std::stack<Value*>;
     Nodes nodes_;
     Errors errors_;
     std::string document_;

src/ripple/json/json_value.h

@@ -141,12 +141,12 @@ class Value
     friend class ValueIteratorBase;
 
 public:
-    typedef std::vector<std::string> Members;
-    typedef ValueIterator iterator;
-    typedef ValueConstIterator const_iterator;
-    typedef Json::UInt UInt;
-    typedef Json::Int Int;
-    typedef UInt ArrayIndex;
+    using Members = std::vector<std::string>;
+    using iterator = ValueIterator;
+    using const_iterator = ValueConstIterator;
+    using UInt = Json::UInt;
+    using Int = Json::Int;
+    using ArrayIndex = UInt;
 
     static const Value null;
     static const Int minInt;
@@ -180,7 +180,7 @@ private:
     };
 
 public:
-    typedef std::map<CZString, Value> ObjectValues;
+    using ObjectValues = std::map<CZString, Value>;
 
 public:
     /** \brief Create a default Value of the given type.
@@ -414,9 +414,9 @@ public:
 class ValueIteratorBase
 {
 public:
-    typedef unsigned int size_t;
-    typedef int difference_type;
-    typedef ValueIteratorBase SelfType;
+    using size_t = unsigned int;
+    using difference_type = int;
+    using SelfType = ValueIteratorBase;
 
     ValueIteratorBase ();
 
@@ -472,11 +472,11 @@ class ValueConstIterator : public ValueIteratorBase
 {
     friend class Value;
 public:
-    typedef unsigned int size_t;
-    typedef int difference_type;
-    typedef const Value& reference;
-    typedef const Value* pointer;
-    typedef ValueConstIterator SelfType;
+    using size_t = unsigned int;
+    using difference_type = int;
+    using reference = const Value&;
+    using pointer = const Value*;
+    using SelfType = ValueConstIterator;
 
     ValueConstIterator ();
 private:
@@ -525,11 +525,11 @@ class ValueIterator : public ValueIteratorBase
 {
     friend class Value;
 public:
-    typedef unsigned int size_t;
-    typedef int difference_type;
-    typedef Value& reference;
-    typedef Value* pointer;
-    typedef ValueIterator SelfType;
+    using size_t = unsigned int;
+    using difference_type = int;
+    using reference = Value&;
+    using pointer = Value*;
+    using SelfType = ValueIterator;
 
     ValueIterator ();
     ValueIterator ( const ValueConstIterator& other );

src/ripple/json/json_writer.h

@@ -101,7 +101,7 @@ private:
     void indent ();
     void unindent ();
 
-    typedef std::vector<std::string> ChildValues;
+    using ChildValues = std::vector<std::string>;
 
     ChildValues childValues_;
     std::string document_;
@@ -155,7 +155,7 @@ private:
     void indent ();
     void unindent ();
 
-    typedef std::vector<std::string> ChildValues;
+    using ChildValues = std::vector<std::string>;
 
     ChildValues childValues_;
     std::ostream* document_;