代码:

typedef std::string::const_iterator iterator;
namespace parsers
{
    namespace spirit = ::boost::spirit;
    namespace ascii = ::boost::spirit::ascii;
    namespace phoenix = ::boost::phoenix;
    spirit::qi::rule< iterator, void(std::string), ascii::space_type > action_parser = 
        '"'
        > spirit::qi::lit("action")
        > spirit::qi::labels::_r1
        > '"';
}

错误:

> 1>CL : warning : This header is deprecated. Please use:
> boost/spirit/include/classic.hpp
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/multi_pass_fwd.hpp(59):
> error C2976: 'boost::spirit::multi_pass' : too few template arguments
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/multi_pass_fwd.hpp(86):
> error C3203: 'multi_pass' : unspecialized class template can't be used
> as a template argument for template parameter 'Iterator', expected a
> real type
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/multi_pass_fwd.hpp(86):
> error C2955: 'boost::spirit::multi_pass' : use of class template
> requires template argument list
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/multi_pass_fwd.hpp(86):
> error C2977: 'boost::spirit::traits::is_multi_pass' : too many
> template arguments
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/multi_pass.hpp(183):
> error C2976: 'boost::spirit::multi_pass' : too few template arguments
> 1>D:\CPP\boost\boost_1_53_0\boost_1_53_0\boost/spirit/home/support/iterators/istream_iterator.hpp(37):
> error C2955: 'boost::spirit::multi_pass' : use of class template
> requires template argument list

最佳答案

Q.: I removed the boost/spirit.hpp inclusion. Why was it the reason? P.S. Thx to FoReVer

答:是因为

CL : warning : This header is deprecated. Please use:
> boost/spirit/include/classic.hpp

换句话说:它告诉你确切的原因。这转化为“仅仅因为”的正常生活。

现在谈谈为什么开发人员会弃用旧 header :

Wikipedia Deprecation

Deprecation is a status applied to a computer software feature, characteristic, or practice indicating it should be avoided, typically because of being superseded

你知道了:“通常是因为被取代了”。在这种情况下，SpiritV2 在 2009 年左右取代了 SpiritV1(？)。文档是这样说的:

Spirit Classic

The Spirit V1.8.x code base has been integrated with Spirit V2. It is now called Spirit.Classic. Since the directory structure has changed (the Spirit Classic headers are now moved to the $BOOST_ROOT/boost/spirit/home/classic directory), we created forwarding headers allowing existing applications to compile without any change.

However, these forwarding headers are deprecated, which will result in corresponding warnings generated for each of the headers starting with Boost V1.38. The forwarding headers are expected to be removed in the future.

The recommended way of using Spirit Classic now is to include header files from the directory $BOOST_ROOT/boost/spirit/include. All Spirit Classic headers in this directory have 'classic_' prefixed to their name.

总而言之，它只是意味着:Spirit Classic 已经过时了。不要使用它。

如果您继承了 Spirit V1 解析器并需要有关迁移到 Spirit V2 的指导:

• Porting from Spirit 1.8.x

注意:我们说话时，SpiritX3 已经在开发中。参见 here

关于c++ - boost::spirit 1.53 multi_pass iterator相关的编译错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17165358/