| #ifndef NULL_H_62B23520_7C8E_11DE_8A39_0800200C9A66 |
| #define NULL_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 "yaml-cpp/dll.h" |
| #include <string> |
| |
| namespace YAML { |
| class Node; |
| |
| struct YAML_CPP_API _Null {}; |
| inline bool operator==(const _Null&, const _Null&) { return true; } |
| inline bool operator!=(const _Null&, const _Null&) { return false; } |
| |
| YAML_CPP_API bool IsNull(const Node& node); // old API only |
| YAML_CPP_API bool IsNullString(const std::string& str); |
| |
| extern YAML_CPP_API _Null Null; |
| } |
| |
| #endif // NULL_H_62B23520_7C8E_11DE_8A39_0800200C9A66 |