編譯器錯誤出現yaml-cpp

我正在嘗試將yaml-cpp集成到一個項目中，但我看到一些GCC出現的意外錯誤。例如：編譯器錯誤出現yaml-cpp

g++ -c -ggdb3 -ansi -Wall -Werror -pedantic-errors src/commands-tz.cpp -o obj/commands-tz.o 
In file included from /usr/local/include/yaml-cpp/conversion.h:9, 
       from /usr/local/include/yaml-cpp/node.h:8, 
       from /usr/local/include/yaml-cpp/parser.h:8, 
       from /usr/local/include/yaml-cpp/yaml.h:8, 
       from src/note.h:26, 
       from src/commands-tz.cpp:297: 
/usr/local/include/yaml-cpp/traits.h:26: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:26: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:26: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:26: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/traits.h:31: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:31: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:31: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:31: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/traits.h:34: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:34: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:34: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:34: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/traits.h:37: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:37: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:37: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:37: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/traits.h:42: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:42: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:42: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:42: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/traits.h:45: error: expected identifier before ‘(’ token 
/usr/local/include/yaml-cpp/traits.h:45: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:45: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/traits.h:45: error: expected unqualified-id before ‘)’ token

又如：

In file included from /usr/local/include/yaml-cpp/nodeimpl.h:8, 
       from /usr/local/include/yaml-cpp/node.h:139, 
       from /usr/local/include/yaml-cpp/parser.h:8, 
       from /usr/local/include/yaml-cpp/yaml.h:8, 
       from src/note.h:26, 
       from src/commands-tz.cpp:297: 
/usr/local/include/yaml-cpp/nodeutil.h:9: error: expected nested-name-specifier before ‘(’ token 
/usr/local/include/yaml-cpp/nodeutil.h:9: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:9: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:9: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/nodeutil.h:14: error: expected nested-name-specifier before ‘(’ token 
/usr/local/include/yaml-cpp/nodeutil.h:14: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:14: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:14: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/nodeutil.h:19: error: expected nested-name-specifier before ‘(’ token 
/usr/local/include/yaml-cpp/nodeutil.h:19: error: expected ‘)’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:19: error: expected ‘>’ before numeric constant 
/usr/local/include/yaml-cpp/nodeutil.h:19: error: expected unqualified-id before ‘)’ token 
/usr/local/include/yaml-cpp/nodeutil.h:24: error: ‘is_index_type_with_check’ is not a template 
/usr/local/include/yaml-cpp/nodeutil.h:24: error: explicit specialization of non-template ‘YAML::is_index_type_with_check’

我的平臺是Fedora的（2.6.32內核），GCC 4.4.1，和YAML-CPP 0.2.5。還有很多很多其他的錯誤。肉眼看來，這似乎是yaml-cpp中的一個問題，但經驗告訴我，我可能是有過錯的人。有任何想法嗎？

UPDATE

文件traits.h包含以下內容：

namespace YAML 
{ 
     template <typename> 
     struct is_numeric { enum { value = false }; }; 

     template <> struct is_numeric <char> { enum { value = true }; }; 
     template <> struct is_numeric <unsigned char> { enum { value = true }; }; 
     template <> struct is_numeric <int> { enum { value = true }; }; 
     template <> struct is_numeric <unsigned int> { enum { value = true }; }; 
     template <> struct is_numeric <long int> { enum { value = true }; }; 
     template <> struct is_numeric <unsigned long int> { enum { value = true }; }; 
     template <> struct is_numeric <short int> { enum { value = true }; }; 
     template <> struct is_numeric <unsigned short int> { enum { value = true }; }; 
     template <> struct is_numeric <long long> { enum { value = true }; }; 
     template <> struct is_numeric <unsigned long long> { enum { value = true }; }; 
     template <> struct is_numeric <float> { enum { value = true }; }; 
     template <> struct is_numeric <double> { enum { value = true }; }; 
     template <> struct is_numeric <long double> { enum { value = true }; }; 

     template <bool, class T = void> 
     struct enable_if_c { 
      typedef T type; 
     }; 

     template <class T> 
     struct enable_if_c<false, T> {}; 

     template <class Cond, class T = void> 
     struct enable_if : public enable_if_c<Cond::value, T> {}; 

     template <bool, class T = void> 
     struct disable_if_c { 
      typedef T type; 
     }; 

     template <class T> 
     struct disable_if_c<true, T> {}; 

     template <class Cond, class T = void> 
     struct disable_if : public disable_if_c<Cond::value, T> {}; 
}

而且nodeutil.h包含：

namespace YAML 
{ 
     template <typename T, typename U> 
     struct is_same_type { 
       enum { value = false }; 
     }; 

     template <typename T> 
     struct is_same_type<T, T> { 
       enum { value = true }; 
     }; 

     template <typename T, bool check> 
     struct is_index_type_with_check { 
       enum { value = false }; 
     }; 

     template <> struct is_index_type_with_check<std::size_t, false> { enum { value = true }; }; 

#define MAKE_INDEX_TYPE(Type) \ 
     template <> struct is_index_type_with_check<Type, is_same_type<Type, std::size_t>::value> { enum { value = true }; } 

     MAKE_INDEX_TYPE(int); 
     MAKE_INDEX_TYPE(unsigned); 
     MAKE_INDEX_TYPE(short); 
     MAKE_INDEX_TYPE(unsigned short); 
     MAKE_INDEX_TYPE(long); 
     MAKE_INDEX_TYPE(unsigned long); 

#undef MAKE_INDEX_TYPE 

     template <typename T> 
     struct is_index_type: public is_index_type_with_check<T, false> {}; 

     // messing around with template stuff to get the right overload for operator [] for a sequence 
     template <typename T, bool b> 
     struct _FindFromNodeAtIndex { 
       const Node *pRet; 
       _FindFromNodeAtIndex(const Node&, const T&): pRet(0) {} 
     }; 

     template <typename T> 
     struct _FindFromNodeAtIndex<T, true> { 
       const Node *pRet; 
       _FindFromNodeAtIndex(const Node& node, const T& key): pRet(node.FindAtIndex(static_cast<std::size_t>(key))) {} 
     }; 

     template <typename T> 
     inline const Node *FindFromNodeAtIndex(const Node& node, const T& key) { 
       return _FindFromNodeAtIndex<T, is_index_type<T>::value>(node, key).pRet; 
     } 
}

來源

2010-06-27 Chris Tonkinson

導致錯誤的行包含哪些代碼？（圍繞traits.h中的第26行和nodeutil.h中的第9行） – Kleist 2010-06-27 21:10:24

你似乎在內部包含地獄。你發佈的traits.h文件包含* no *'（'，但是gcc抱怨在'（'之前發生了什麼，這可能意味着你包含一些與這個文件中的名字相同的宏。在您的項目中重新排序包含，看看它是否有任何區別 – Gianni 2010-06-27 23:40:21

@Gianni：這是包括地獄好吧，我不知道這是如何工作，但文件「note.h」包括。在一個實現中tation文件[src/commands-tz.cpp]我#include「note.h」和GCC死了。如果我添加（包含*之前的*）一個#include ，那麼一切工作都會變得很花哨。我無法弄清楚，但感謝您的建議！（轉貼爲答覆，所以我可以標記它？） – 2010-08-02 10:41:24

你好像在裏面包含地獄。你發佈的traits.h文件不包含'（'，但gcc抱怨'（'之前出現了什麼，這可能意味着你正在包含一些與此文件中的名稱相同的宏。包括在你的項目中，看看它是否有任何區別

來源

2010-08-02 12:27:08 Gianni

我建議你嘗試刪除「使用命名空間X ;」 - 特別是X == YAML。您的錯誤消息可能會以這種方式更具洞察力 - 因爲它看起來像是有名稱衝突。另一個竅門是看看預處理器吐出了什麼 - 用G ++，你可以用-E（而不是-c）運行你的編譯行，並將輸出傳送到一個文件中。然後，您可以看到編譯器正在獲取什麼（而不是原始源，或預處理器正在獲取什麼）。

來源

2010-06-28 20:01:16

編譯器錯誤出現yaml-cpp

回答

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