Update ex14_18_String.h

Author: Mooophy

ch14/ex14_18_String.h

@@ -20,52 +20,52 @@
 
 class String
 {
-	friend std::ostream& operator<<(std::ostream&, const String&);
-	friend std::istream& operator>>(std::istream&, String&);
-	friend bool operator==(const String&, const String&);
-	friend bool operator!=(const String&, const String&);
-	friend bool operator< (const String&, const String&);
-	friend bool operator> (const String&, const String&);
-	friend bool operator<=(const String&, const String&);
-	friend bool operator>=(const String&, const String&);
+    friend std::ostream& operator<<(std::ostream&, const String&);
+    friend std::istream& operator>>(std::istream&, String&);
+    friend bool operator==(const String&, const String&);
+    friend bool operator!=(const String&, const String&);
+    friend bool operator< (const String&, const String&);
+    friend bool operator> (const String&, const String&);
+    friend bool operator<=(const String&, const String&);
+    friend bool operator>=(const String&, const String&);
 
 public:
-	String() : String("") {}
-	String(const char *);
-	String(const String&);
-	String& operator=(const String&);
-	String(String &&) NOEXCEPT;
-	String& operator=(String&&) NOEXCEPT;
-	~String();
+    String() : String("") {}
+    String(const char *);
+    String(const String&);
+    String& operator=(const String&);
+    String(String &&) NOEXCEPT;
+    String& operator=(String&&)NOEXCEPT;
+    ~String();
 
-	void push_back(const char);
+    void push_back(const char);
 
-	char* begin() const { return elements; }
-	char* end() const { return last_elem; }
+    char* begin() const { return elements; }
+    char* end() const { return last_elem; }
 
-	const char *c_str() const { return elements; }
-	size_t size() const { return last_elem - elements; }
-	size_t length() const { return size(); }
-	size_t capacity() const { return cap - elements; }
+    const char *c_str() const { return elements; }
+    size_t size() const { return last_elem - elements; }
+    size_t length() const { return size(); }
+    size_t capacity() const { return cap - elements; }
 
-	void reserve(size_t);
-	void resize(size_t);
-	void resize(size_t, char);
+    void reserve(size_t);
+    void resize(size_t);
+    void resize(size_t, char);
 
 private:
-	std::pair<char*, char*> alloc_n_copy(const char*, const char*);
-	void range_initializer(const char*, const char*);
-	void free();
-	void reallocate();
-	void alloc_n_move(size_t new_cap);
-	void chk_n_alloc() { if (first_free == cap) reallocate(); }
+    std::pair<char*, char*> alloc_n_copy(const char*, const char*);
+    void range_initializer(const char*, const char*);
+    void free();
+    void reallocate();
+    void alloc_n_move(size_t new_cap);
+    void chk_n_alloc() { if (first_free == cap) reallocate(); }
 
 private:
-	char *elements;
-	char *last_elem;
-	char *first_free;
-	char *cap;
-	std::allocator<char> alloc;
+    char *elements;
+    char *last_elem;
+    char *first_free;
+    char *cap;
+    std::allocator<char> alloc;
 };
 
 std::ostream& operator<<(std::ostream&, const String&);