golden hour

/usr/include/c++/4.8.2/bits

File/Folder	Size	Actions
algorithmfwd.h	20.66 KB
alloc_traits.h	17.66 KB
allocator.h	6.1 KB
atomic_base.h	24.99 KB
atomic_lockfree_defines.h	2.2 KB
basic_ios.h	14.76 KB
basic_ios.tcc	5.89 KB
basic_string.h	109.49 KB
basic_string.tcc	38.43 KB
boost_concept_check.h	26.41 KB
c++0x_warning.h	1.47 KB
char_traits.h	16.95 KB
codecvt.h	16.23 KB
concept_check.h	3.26 KB
cpp_type_traits.h	9.56 KB
cxxabi_forced.h	1.77 KB
deque.tcc	31.91 KB
exception_defines.h	1.6 KB
exception_ptr.h	5.29 KB
forward_list.h	46.72 KB
forward_list.tcc	15.17 KB
fstream.tcc	28.3 KB
functexcept.h	3.04 KB
functional_hash.h	6.05 KB
gslice.h	5.39 KB
gslice_array.h	7.59 KB
hash_bytes.h	2.1 KB
hashtable.h	61.05 KB
hashtable_policy.h	52.72 KB
indirect_array.h	7.68 KB
ios_base.h	27.85 KB
istream.tcc	30.36 KB
list.tcc	12.2 KB
locale_classes.h	22.45 KB
locale_classes.tcc	8.18 KB
locale_facets.h	88.84 KB
locale_facets.tcc	38.02 KB
locale_facets_nonio.h	63.51 KB
locale_facets_nonio.tcc	40.85 KB
localefwd.h	5.1 KB
mask_array.h	7.41 KB
memoryfwd.h	2.36 KB
move.h	5.67 KB
nested_exception.h	4.58 KB
ostream.tcc	12.03 KB
ostream_insert.h	3.91 KB
postypes.h	8.02 KB
ptr_traits.h	5.17 KB
random.h	173.19 KB
random.tcc	106.59 KB
range_access.h	3.06 KB
regex.h	83.49 KB
regex_compiler.h	27.68 KB
regex_constants.h	10.81 KB
regex_cursor.h	2.7 KB
regex_error.h	4.5 KB
regex_grep_matcher.h	4.23 KB
regex_grep_matcher.tcc	5.41 KB
regex_nfa.h	10.65 KB
regex_nfa.tcc	4.85 KB
shared_ptr.h	18.97 KB
shared_ptr_base.h	40.65 KB
slice_array.h	9.12 KB
sstream.tcc	9.27 KB
stl_algo.h	212.55 KB
stl_algobase.h	41.41 KB
stl_bvector.h	28.98 KB
stl_construct.h	5.05 KB
stl_deque.h	66.41 KB
stl_function.h	22.06 KB
stl_heap.h	19.99 KB
stl_iterator.h	35.77 KB
stl_iterator_base_funcs.h	6.8 KB
stl_iterator_base_types.h	8.19 KB
stl_list.h	52.83 KB
stl_map.h	36.78 KB
stl_multimap.h	33.94 KB
stl_multiset.h	28.37 KB
stl_numeric.h	13.5 KB
stl_pair.h	9.63 KB
stl_queue.h	18.21 KB
stl_raw_storage_iter.h	3.37 KB
stl_relops.h	4.49 KB
stl_set.h	28.61 KB
stl_stack.h	9.65 KB
stl_tempbuf.h	8.15 KB
stl_tree.h	53.56 KB
stl_uninitialized.h	19.95 KB
stl_vector.h	48.64 KB
stream_iterator.h	6.44 KB
streambuf.tcc	4.81 KB
streambuf_iterator.h	12.33 KB
stringfwd.h	2.37 KB
unique_ptr.h	17.19 KB
unordered_map.h	47.76 KB
unordered_set.h	43.25 KB
uses_allocator.h	3.49 KB
valarray_after.h	22.12 KB
valarray_array.h	21.23 KB
valarray_array.tcc	7.08 KB
valarray_before.h	18.08 KB
vector.tcc	25.55 KB

Edit: regex_error.h

// class template regex -*- C++ -*-

// Copyright (C) 2010-2013 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/**
 * @file bits/regex_error.h
 * @brief Error and exception objects for the std regex library.
 *
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{regex}
 */

namespace std _GLIBCXX_VISIBILITY(default)
{
/**
 * @addtogroup regex
 * @{
 */

namespace regex_constants
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/**
   * @name 5.3 Error Types
   */
  //@{
 
  enum error_type
    {
      _S_error_collate,
      _S_error_ctype,
      _S_error_escape,
      _S_error_backref,
      _S_error_brack,
      _S_error_paren,
      _S_error_brace,
      _S_error_badbrace,
      _S_error_range,
      _S_error_space,
      _S_error_badrepeat,
      _S_error_complexity,
      _S_error_stack,
      _S_error_last
    };

/** The expression contained an invalid collating element name. */
  constexpr error_type error_collate(_S_error_collate);

/** The expression contained an invalid character class name. */
  constexpr error_type error_ctype(_S_error_ctype);

/**
   * The expression contained an invalid escaped character, or a trailing
   * escape.
   */
  constexpr error_type error_escape(_S_error_escape);

/** The expression contained an invalid back reference. */
  constexpr error_type error_backref(_S_error_backref);

/** The expression contained mismatched [ and ]. */
  constexpr error_type error_brack(_S_error_brack);

/** The expression contained mismatched ( and ). */
  constexpr error_type error_paren(_S_error_paren);

/** The expression contained mismatched { and } */
  constexpr error_type error_brace(_S_error_brace);

/** The expression contained an invalid range in a {} expression. */
  constexpr error_type error_badbrace(_S_error_badbrace);

/**
   * The expression contained an invalid character range,
   * such as [b-a] in most encodings.
   */
  constexpr error_type error_range(_S_error_range);

/**
   * There was insufficient memory to convert the expression into a
   * finite state machine.
   */
  constexpr error_type error_space(_S_error_space);

/**
   * One of <em>*?+{</em> was not preceded by a valid regular expression.
   */
  constexpr error_type error_badrepeat(_S_error_badrepeat);

/**
   * The complexity of an attempted match against a regular expression
   * exceeded a pre-set level.
   */
  constexpr error_type error_complexity(_S_error_complexity);

/**
   * There was insufficient memory to determine whether the
   * regular expression could match the specified character sequence.
   */
  constexpr error_type error_stack(_S_error_stack);

//@}
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace regex_constants

_GLIBCXX_BEGIN_NAMESPACE_VERSION

// [7.8] Class regex_error
  /**
   * @brief A regular expression exception class.
   * @ingroup exceptions
   *
   * The regular expression library throws objects of this class on error.
   */
  class regex_error : public std::runtime_error
  {
    regex_constants::error_type _M_code;

public:
    /**
     * @brief Constructs a regex_error object.
     *
     * @param __ecode the regex error code.
     */
    explicit
    regex_error(regex_constants::error_type __ecode);

virtual ~regex_error() throw();

/**
     * @brief Gets the regex error code.
     *
     * @returns the regex error code.
     */
    regex_constants::error_type
    code() const
    { return _M_code; }
  };

//@} // group regex

void
  __throw_regex_error(regex_constants::error_type __ecode);

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std