| // ---------------------------------------------------------------------------- |
| // free_funcs.hpp : implementation of the free functions of boost::format |
| // ---------------------------------------------------------------------------- |
| |
| // Copyright Samuel Krempp 2003. Use, modification, and distribution are |
| // subject to the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| // See http://www.boost.org/libs/format for library home page |
| |
| // ---------------------------------------------------------------------------- |
| |
| #ifndef BOOST_FORMAT_FUNCS_HPP |
| #define BOOST_FORMAT_FUNCS_HPP |
| |
| #include <boost/format/format_class.hpp> |
| #include <boost/throw_exception.hpp> |
| |
| namespace boost { |
| |
| template<class Ch, class Tr, class Alloc> inline |
| std::basic_string<Ch, Tr, Alloc> str(const basic_format<Ch, Tr, Alloc>& f) { |
| // adds up all pieces of strings and converted items, and return the formatted string |
| return f.str(); |
| } |
| namespace io { |
| using ::boost::str; // keep compatibility with when it was defined in this N.S. |
| } // - namespace io |
| |
| #ifndef BOOST_NO_TEMPLATE_STD_STREAM |
| template<class Ch, class Tr, class Alloc> |
| std::basic_ostream<Ch, Tr> & |
| operator<<( std::basic_ostream<Ch, Tr> & os, |
| const basic_format<Ch, Tr, Alloc>& f) |
| #else |
| template<class Ch, class Tr, class Alloc> |
| std::ostream & |
| operator<<( std::ostream & os, |
| const basic_format<Ch, Tr, Alloc>& f) |
| #endif |
| // effect: "return os << str(f);" but we can do it faster |
| { |
| typedef boost::basic_format<Ch, Tr, Alloc> format_t; |
| if(f.items_.size()==0) |
| os << f.prefix_; |
| else { |
| if(f.cur_arg_ < f.num_args_) |
| if( f.exceptions() & io::too_few_args_bit ) |
| // not enough variables supplied |
| boost::throw_exception(io::too_few_args(f.cur_arg_, f.num_args_)); |
| if(f.style_ & format_t::special_needs) |
| os << f.str(); |
| else { |
| // else we dont have to count chars output, so we dump directly to os : |
| os << f.prefix_; |
| for(unsigned long i=0; i<f.items_.size(); ++i) { |
| const typename format_t::format_item_t& item = f.items_[i]; |
| os << item.res_; |
| os << item.appendix_; |
| } |
| } |
| } |
| f.dumped_=true; |
| return os; |
| } |
| |
| } // namespace boost |
| |
| |
| #endif // BOOST_FORMAT_FUNCS_HPP |