如何使用boost:：program_选项解析逗号分隔的值？
我需要使用如何使用boost:：program_选项解析逗号分隔的值？,boost,command-line,boost-program-options,Boost,Command Line,Boost Program Options,我需要使用boost:：program\u options解析cmd，比如-value=str1、str2、str3。我已经找到了，但它不再工作了（Boost1.55和1.56） 我尝试定义自己的类和映射器，但没有成功： namespace po = boost::program_options; desc.add_options() ("mattr", po::value<lli::CommaSeparatedVector>(&MAttrs), "Targ
boost:：program\u options-value=str1、str2、str3namespace po = boost::program_options;
desc.add_options()
("mattr", po::value<lli::CommaSeparatedVector>(&MAttrs), "Target specific attributes (-mattr=help for details)");
namespace lli {
class CommaSeparatedVector
{
public:
// comma separated values list
std::vector<std::string> values;
};
}
void tokenize(const std::string& str, std::vector<std::string>& tokens, const std::string& delimiters = ",")
{
// Skip delimiters at beginning.
std::string::size_type lastPos = str.find_first_not_of(delimiters, 0);
// Find first non-delimiter.
std::string::size_type pos = str.find_first_of(delimiters, lastPos);
while (std::string::npos != pos || std::string::npos != lastPos) {
// Found a token, add it to the vector.
tokens.push_back(str.substr(lastPos, pos - lastPos));
// Skip delimiters.
lastPos = str.find_first_not_of(delimiters, pos);
// Find next non-delimiter.
pos = str.find_first_of(delimiters, lastPos);
}
}
// mapper for "lli::CommaSeparatedVector"
std::istream& operator>>(std::istream& in, lli::CommaSeparatedVector &value)
{
std::string token;
in >> token;
tokenize(token, value.values);
return in;
}
namespace po=boost:：program\u选项；
说明添加选项（）
（“mattr”，po:：value（&mattr），“特定于目标的属性（-mattr=详细信息帮助）”；
名称空间lli{
类逗号分离向量
{
公众：
//逗号分隔值列表
std：：向量值；
};
}
void标记化（const std:：string&str，std:：vector&tokens，const std:：string&delimiters=“，”）
{
//跳过开头的分隔符。
std:：string:：size\u type lastPos=str.find\u first\u not\u of（分隔符，0）；
//查找第一个非分隔符。
std:：string:：size\u type pos=str.find\u first\u of（分隔符，lastPos）；
while（std:：string:：npos！=pos | | std:：string:：npos！=lastPos）{
//找到一个标记，将其添加到向量。
回推（str.substr（lastPos，pos-lastPos））；
//跳过分隔符。
lastPos=str.find_first_not_of（分隔符，pos）；
//查找下一个非分隔符。
pos=str.find_first_of（分隔符，lastPos）；
}
}
//“lli:：CommaSeparatedVector”的映射程序
std:：istream和运算符>>（std:：istream和in，lli:：CommaseParated向量和值）
{
字符串标记；
在>>令牌中；
标记化（标记、值、值）；
返回；
}
In file included from /softdev/boost-1.56/include/boost/program_options.hpp:15:
In file included from /softdev/boost-1.56/include/boost/program_options/options_description.hpp:13:
In file included from /softdev/boost-1.56/include/boost/program_options/value_semantic.hpp:14:
/softdev/boost-1.56/include/boost/lexical_cast.hpp:379:13: error: implicit instantiation of undefined template
'boost::STATIC_ASSERTION_FAILURE<false>'
BOOST_STATIC_ASSERT_MSG((result_t::value || boost::has_right_shift<std::basic_istream<wchar_t>, T >::value),
^
/softdev/boost-1.56/include/boost/static_assert.hpp:36:48: note: expanded from macro 'BOOST_STATIC_ASSERT_MSG'
# define BOOST_STATIC_ASSERT_MSG( B, Msg ) BOOST_STATIC_ASSERT( B )
^
/softdev/boost-1.56/include/boost/static_assert.hpp:169:13: note: expanded from macro 'BOOST_STATIC_ASSERT'
sizeof(::boost::STATIC_ASSERTION_FAILURE< BOOST_STATIC_ASSERT_BOOL_CAST( __VA_ARGS__ ) >)>\
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:406:44: note: in instantiation of template class
'boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<lli::CommaSeparatedVector> >'
requested here
typedef BOOST_DEDUCED_TYPENAME deduce_target_char_impl< stage1_type >::type stage2_type;
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:564:59: note: in instantiation of template class
'boost::detail::deduce_target_char<lli::CommaSeparatedVector>' requested here
typedef BOOST_DEDUCED_TYPENAME boost::detail::deduce_target_char<Target>::type target_char_t;
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2067:40: note: in instantiation of template class
'boost::detail::lexical_cast_stream_traits<std::__1::basic_string<char>, lli::CommaSeparatedVector>' requested here
BOOST_DEDUCED_TYPENAME stream_trait::char_type,
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2289:20: note: in instantiation of template class
'boost::detail::lexical_converter_impl<lli::CommaSeparatedVector, std::__1::basic_string<char> >' requested here
return caster_type::try_convert(arg, result);
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2316:41: note: in instantiation of function template specialization
'boost::conversion::detail::try_lexical_convert<lli::CommaSeparatedVector, std::__1::basic_string<char> >' requested
here
if (!boost::conversion::detail::try_lexical_convert(arg, result))
^
/softdev/boost-1.56/include/boost/program_options/detail/value_semantic.hpp:89:21: note: in instantiation of function
template specialization 'boost::lexical_cast<lli::CommaSeparatedVector, std::__1::basic_string<char> >' requested here
v = any(lexical_cast<T>(s));
^
/softdev/boost-1.56/include/boost/program_options/detail/value_semantic.hpp:167:13: note: in instantiation of function
template specialization 'boost::program_options::validate<lli::CommaSeparatedVector, char>' requested here
validate(value_store, new_tokens, (T*)0, 0);
^
/softdev/boost-1.56/include/boost/program_options/detail/value_semantic.hpp:182:33: note: in instantiation of member function
'boost::program_options::typed_value<lli::CommaSeparatedVector, char>::xparse' requested here
typed_value<T>* r = new typed_value<T>(v);
^
./lib_lli.cpp:480:23: note: in instantiation of function template specialization
'boost::program_options::value<lli::CommaSeparatedVector>' requested here
("mattr", po::value<lli::CommaSeparatedVector>(&MAttrs), "Target specific attributes (-mattr=help for details)");
^
/softdev/boost-1.56/include/boost/static_assert.hpp:87:26: note: template is declared here
template <bool x> struct STATIC_ASSERTION_FAILURE;
^
1 warning and 1 error generated.
包含在/softdev/boost-1.56/include/boost/program_options.hpp:15中的文件中：
在/softdev/boost-1.56/include/boost/program_options/options_description包含的文件中。hpp:13：
在/softdev/boost-1.56/include/boost/program_options/value_semantic.hpp:14中包含的文件中：
/softdev/boost-1.56/include/boost/lexical_cast.hpp:379:13:错误：未定义模板的隐式实例化
'boost:：静态\u断言\u失败'
BOOST_STATIC_ASSERT_MSG（（result_t:：value | | BOOST:：has_right_shift:：value），
^
/softdev/boost-1.56/include/boost/static\u assert.hpp:36:48：注意：从宏“boost\u static\u assert\u MSG”展开
#定义BOOST\u STATIC\u ASSERT\u MSG（B，MSG）BOOST\u STATIC\u ASSERT（B）
^
/softdev/boost-1.56/include/boost/static\u assert.hpp:169:13：注意：从宏“boost\u static\u assert”展开
sizeof（：：boost:：STATIC\u ASSERTION\u FAILURE）>\
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:406:44：注意：在模板类的实例化中
'boost:：detail:：推断\u target\u char\u impl'
在此请求
typedef BOOST_deculated_TYPENAME deculated_target_char_impl：type stage2_type；
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:564:59：注意：在模板类的实例化中
此处请求“boost:：detail:：推断目标字符”
typedef BOOST_推导的TYPENAME BOOST:：detail:：推断的目标字符：：type target_char\t；
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2067:40：注意：在模板类的实例化中
此处请求“boost:：detail:：lexical\u cast\u stream\u traits”
BOOST\u导出的\u类型名称流\u特征：：char\u类型，
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2289:20：注意：在模板类的实例化中
此处请求“boost:：detail:：lexical\u converter\u impl”
返回caster\u type:：try\u convert（arg，result）；
^
/softdev/boost-1.56/include/boost/lexical_cast.hpp:2316:41：注意：在函数模板专门化的实例化中
请求“boost:：conversion:：detail:：try\u lexical\u conversion”
在这里
如果（！boost:：conversion:：detail:：try_lexical_conversion（arg，result））
^
/softdev/boost-1.56/include/boost/program\u options/detail/value\u semantic.hpp:89:21：注意：在函数的实例化中
此处请求模板专门化“boost:：lexical\u cast”
v=任何（词汇投射）；
^
/softdev/boost-1.56/include/boost/program\u options/detail/value\u semantic.hpp:167:13：注意：在函数的实例化中
此处请求模板专门化“boost:：program\u options:：validate”
验证（值存储，新令牌，（T*）0,0）；
^
/softdev/boost-1.56/include/boost/program\u options/detail/value\u semantic.hpp:182:33:注意：在成员函数的实例化中
此处请求“boost:：program\u options:：typed\u value:：xparse”
类型化_值*r=新类型化_值（v）；
^
./lib_lli.cpp:480:23：注意：在函数模板专门化的实例化中
此处请求“boost:：program_options:：value”
（“mattr”，po:：value（&mattr），“特定于目标的属性（-mattr=详细信息帮助）”；
^
/softdev/boost-1.56/include/boost/static_assert.hpp:87:26：注意：这里声明了模板
模板结构静态断言失败；
^
生成1个警告和1个错误。
操作符>std:：istream&boost:：detail