| #ifndef PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66 |
| #define PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66 |
| |
| #if defined(_MSC_VER) || \ |
| (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \ |
| (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4 |
| #pragma once |
| #endif |
| |
| #include <cstddef> |
| #include <cstdlib> |
| #include <memory> |
| #include <vector> |
| |
| #include "yaml-cpp/noncopyable.h" |
| |
| template <typename T> |
| class ptr_stack : private YAML::noncopyable { |
| public: |
| ptr_stack() {} |
| ~ptr_stack() { clear(); } |
| |
| void clear() { |
| for (std::size_t i = 0; i < m_data.size(); i++) |
| delete m_data[i]; |
| m_data.clear(); |
| } |
| |
| std::size_t size() const { return m_data.size(); } |
| bool empty() const { return m_data.empty(); } |
| |
| void push(std::auto_ptr<T> t) { |
| m_data.push_back(NULL); |
| m_data.back() = t.release(); |
| } |
| std::auto_ptr<T> pop() { |
| std::auto_ptr<T> t(m_data.back()); |
| m_data.pop_back(); |
| return t; |
| } |
| T& top() { return *m_data.back(); } |
| const T& top() const { return *m_data.back(); } |
| |
| T& top(std::ptrdiff_t diff) { return **(m_data.end() - 1 + diff); } |
| const T& top(std::ptrdiff_t diff) const { |
| return **(m_data.end() - 1 + diff); |
| } |
| |
| private: |
| std::vector<T*> m_data; |
| }; |
| |
| #endif // PTR_STACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66 |