Question

我正在移植/更新一些非常古老的代码而且我的C ++不是很尖锐（我主要是C程序员）。我收到了这个错误 - 如何解决这个问题？有人可以解释这个烂摊子吗？注意第512行是结构定义 - 第一行？

In file included from src/aaa_dict_mngr.cxx:38:0:
./include/aaa_parser_avpvalue.h:512:41: error: expected template-name before '<' token
./include/aaa_parser_avpvalue.h:512:41: error: expected '{' before '<' token
./include/aaa_parser_avpvalue.h:512:41: error: expected unqualified-id before '<' token

违规代码：

struct DiamidentGrammar : public grammar<DiamidentGrammar>
{
  template <typename ScannerT>
  struct definition
  {
    definition(DiamidentGrammar const& self)  
    { 
      diameterIdentity = realm;
      realm = label >> *('.' >> label);  // No recursive rule allowed.
      label = diameterName | diameterDname;
      diameterName = alpha_p >> *(alnum_p | '-');
      diameterDname = digit_p >> +(alnum_p | '-');
    }
    rule<ScannerT> diameterIdentity, realm, label, diameterName, diameterDname;
    rule<ScannerT> const& start() const { return diameterIdentity; }
  };
};

Answer 1

这只是古老的灵魂代码。您需要使用经典的标头/命名空间：

查看 Live On Coliru

哦，无论如何，升级！ Spirit V2已有多年历史，SpiritX3即将来临

#include <boost/spirit/include/classic.hpp>

using namespace boost::spirit::classic;

struct DiamidentGrammar : public grammar<DiamidentGrammar>
{
    template <typename ScannerT>
        struct definition
        {
            definition(DiamidentGrammar const& self)  
            { 
                diameterIdentity = realm;
                realm = label >> *('.' >> label);  // No recursive rule allowed.
                label = diameterName | diameterDname;
                diameterName = alpha_p >> *(alnum_p | '-');
                diameterDname = digit_p >> +(alnum_p | '-');
            }
            rule<ScannerT> diameterIdentity, realm, label, diameterName, diameterDname;
            rule<ScannerT> const& start() const { return diameterIdentity; }
        };
};

int main()
{
}

类/结构定义错误

1 个答案: