Run clang-format

source/listing_3.4.cpp

@@ -1,24 +1,24 @@
 #include <exception>
 #include <memory>
 
-struct empty_stack: std::exception
-{
-    const char* what() const throw();
+struct empty_stack : std::exception {
+  const char* what() const throw();
 };
 
-template<typename T>
-class threadsafe_stack
-{
+template <typename T>
+class threadsafe_stack {
 public:
-    threadsafe_stack();
-    threadsafe_stack(const threadsafe_stack&);
-    threadsafe_stack& operator=(const threadsafe_stack&) = delete;
+  threadsafe_stack();
+  threadsafe_stack(const threadsafe_stack&);
+  threadsafe_stack& operator=(const threadsafe_stack&) = delete;
 
-    void push(T new_value);
-    std::shared_ptr<T> pop();
-    void pop(T& value);
-    bool empty() const;
+  void push(T new_value);
+  std::shared_ptr<T> pop();
+  void pop(T& value);
+  bool empty() const;
 };
 
-int main()
-{}
+int
+main()
+{
+}