diff options
Diffstat (limited to 'nix/boost/format/free_funcs.cc')
-rw-r--r-- | nix/boost/format/free_funcs.cc | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/nix/boost/format/free_funcs.cc b/nix/boost/format/free_funcs.cc new file mode 100644 index 0000000000..151db37a0a --- /dev/null +++ b/nix/boost/format/free_funcs.cc @@ -0,0 +1,71 @@ +// -*- C++ -*- +// Boost general library 'format' --------------------------- +// See http://www.boost.org for updates, documentation, and revision history. + +// (C) Samuel Krempp 2001 +// krempp@crans.ens-cachan.fr +// Permission to copy, use, modify, sell and +// distribute this software is granted provided this copyright notice appears +// in all copies. This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. + +// ideas taken from Rüdiger Loos's format class +// and Karl Nelson's ofstream (also took its parsing code as basis for printf parsing) + +// ------------------------------------------------------------------------------ +// free_funcs.hpp : implementation of the free functions declared in namespace format +// ------------------------------------------------------------------------------ + +#ifndef BOOST_FORMAT_FUNCS_HPP +#define BOOST_FORMAT_FUNCS_HPP + +#include "boost/format.hpp" +#include "boost/throw_exception.hpp" + +namespace boost { + +namespace io { + inline + std::string str(const basic_format& f) + // adds up all pieces of strings and converted items, and return the formatted string + { + return f.str(); + } +} // - namespace io + +BOOST_IO_STD ostream& +operator<<( BOOST_IO_STD ostream& os, + const boost::basic_format& f) + // effect: "return os << str(f);" but we can try to do it faster +{ + typedef boost::basic_format 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 ) + boost::throw_exception(io::too_few_args()); // not enough variables have been supplied ! + 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 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 |