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// ----------------------------------------------------------------------------
// 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
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