id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
6948,Boost::spirit::karma generator bug,yaoyuan1216@…,Hartmut Kaiser,"I wanna save a generator so that I can call it anytime without writing duplicate codes. Here is my code:

#include<boost/spirit/include/karma.hpp>
#include<boost/spirit/include/karma_format_attr.hpp>
#include<list>
#include<iostream>

//auto par = '{' << -(boost::spirit::karma::int_ % ',') << '}';//This would lead error!
int main(){
	using namespace std;
	namespace karma = boost::spirit::karma;	
	list<int> l{1, 2, 4};
	auto par = '{' << -(boost::spirit::karma::int_ % ',') << '}';//This would not!
	cout<<karma::format(par, l)<<endl;
	return 0;
}

When I define par out of a functint would leads to runtime error. Does I used it generator in a wrong way or it is a bug?
GCC version 4.6.3",Bugs,closed,To Be Determined,spirit,Boost 1.49.0,Problem,invalid,,