// -*- 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
25ae2a152f80d2'>root</a>/<a href='/guix/log/nix?id=01af4c2a81ee495a561839287725ae2a152f80d2'>nix</a>/<a href='/guix/log/nix/boost?id=01af4c2a81ee495a561839287725ae2a152f80d2'>boost</a>/<a href='/guix/log/nix/boost/format?id=01af4c2a81ee495a561839287725ae2a152f80d2'>format</a>/<a href='/guix/log/nix/boost/format/exceptions.hpp?id=01af4c2a81ee495a561839287725ae2a152f80d2'>exceptions.hpp</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/nix/boost/format/exceptions.hpp?id=01af4c2a81ee495a561839287725ae2a152f80d2&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
ltip'>Previously, ‘latest-channel-instances’ would perform a depth-first
traversal of channels.  Since dependencies specified in ‘.guix-channel’
are usually less specific that those provided by the user, this would
lead to the use of instances corresponding to those less specific specs,
which in turn might declare dependencies that do not exist for the more
specific instances.

This commit changes ‘latest-channel-instances’ to perform a
breadth-first traversal, thereby giving user-supplied channels higher
precedence over dependencies found via ‘.guix-channel’.

Fixes &lt;https://issues.guix.gnu.org/68822&gt;.

* guix/channels.scm (latest-channel-instances)[ignore?]: Remove.
[instance-name, same-named?, more-specific?]: New procedures.
Rewrite as a breadth-first traversal using a regular loop.
* tests/channels.scm ("latest-channel-instances reads dependencies from most-specific instance"):
New test.

Change-Id: Iba518145cfd209f04293a56246dbfee3b714650b
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2024-01-31 09:07:25 +0100'>2024-01-31</span></td><td><a href='/guix/commit/tests/channels.scm?id=36d654fa540539413b88cf8ec62a0fb55280f820'>channels: Tweak test.</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/channels.scm ("latest-channel-instances excludes duplicate channel dependencies"):
Use ‘equal?’ rather than ‘string=?’ since we can get #f.

Change-Id: I437b9d7e23200cf0c98b1593e68b1d355bc2de01
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-09-26 17:36:59 +0200'>2023-09-26</span></td><td><a href='/guix/commit/tests/channels.scm?id=ba21eeb565fe414b3647173068a0f3eadd174c06'>tests: Assume ‘git’ is always available.</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/channels.scm (gpg+git-available?): Check for ‘gpg-command’
only.
Remove all ‘test-skip’ statements.
* tests/derivations.scm: Likewise.
* tests/git-authenticate.scm: Likewise.
* tests/git.scm: Likewise.
* tests/import-git.scm: Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>