external_libraries/yaml-cpp-0.2.6/src/ptr_stack.h

   1 #ifndef PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   2 #define PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   3
   4 #if !defined(__GNUC__) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4) // GCC supports "pragma once" correctly since 3.4
   5 #pragma once
   6 #endif
   7
   8 #include "yaml-cpp/noncopyable.h"
   9 #include <memory>
  10 #include <vector>
  11 #include <cstddef>
  12
  13 template <typename T>
  14 class ptr_stack: private YAML::noncopyable
  15 {
  16 public:
  17         ptr_stack() {}
  18         ~ptr_stack() { clear(); }
  19
  20         void clear() {
  21                 for(unsigned i=0;i<m_data.size();i++)
  22                         delete m_data[i];
  23                 m_data.clear();
  24         }
  25
  26         std::size_t size() const { return m_data.size(); }
  27         bool empty() const { return m_data.empty(); }
  28
  29         void push(std::auto_ptr<T> t) {
  30                 m_data.push_back(NULL);
  31                 m_data.back() = t.release();
  32         }
  33         std::auto_ptr<T> pop() {
  34                 std::auto_ptr<T> t(m_data.back());
  35                 m_data.pop_back();
  36                 return t;
  37         }
  38         T& top() { return *m_data.back(); }
  39         const T& top() const { return *m_data.back(); }
  40
  41 private:
  42         std::vector<T*> m_data;
  43 };
  44
  45 #endif // PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66