// Debugging mode support code -*- C++ -*-
// Copyright (C) 2003-2013 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/>.
#include <debug/debug.h>
#include <debug/safe_sequence.h>
#include <debug/safe_unordered_container.h>
#include <debug/safe_iterator.h>
#include <debug/safe_local_iterator.h>
#include <algorithm>
#include <cassert>
#include <cstring>
#include <cctype>
#include <cstdio>
#include <cstdlib>
#include <functional>
using namespace std;
namespace
{
/** Returns different instances of __mutex depending on the passed address
* in order to limit contention without breaking current library binary
* compatibility. */
__gnu_cxx::__mutex&
get_safe_base_mutex(void* __address)
{
const size_t mask = 0xf;
static __gnu_cxx::__mutex safe_base_mutex[mask + 1];
const size_t index = _Hash_impl::hash(__address) & mask;
return safe_base_mutex[index];
}
void
swap_its(__gnu_debug::_Safe_sequence_base& __lhs,
__gnu_debug::_Safe_iterator_base*& __lhs_its,
__gnu_debug::_Safe_sequence_base& __rhs,
__gnu_debug::_Safe_iterator_base*& __rhs_its)
{
swap(__lhs_its, __rhs_its);
__gnu_debug::_Safe_iterator_base* __iter;
for (__iter = __rhs_its; __iter; __iter = __iter->_M_next)
__iter->_M_sequence = &__rhs;
for (__iter = __lhs_its; __iter; __iter = __iter->_M_next)
__iter->_M_sequence = &__lhs;
}
void
swap_seq(__gnu_debug::_Safe_sequence_base& __lhs,
__gnu_debug::_Safe_sequence_base& __rhs)
{
swap(__lhs._M_version, __rhs._M_version);
swap_its(__lhs, __lhs._M_iterators,
__rhs, __rhs._M_iterators);
swap_its(__lhs, __lhs._M_const_iterators,
__rhs, __rhs._M_const_iterators);
}
void
swap_ucont(__gnu_debug::_Safe_unordered_container_base& __lhs,
__gnu_debug::_Safe_unordered_container_base& __rhs)
{
swap_seq(__lhs, __rhs);
swap_its(__lhs, __lhs._M_local_iterators,
__rhs, __rhs._M_local_iterators);
swap_its(__lhs, __lhs._M_const_local_iterators,
__rhs, __rhs._M_const_local_iterators);
}
void
detach_all(__gnu_debug::_Safe_iterator_base* __iter)
{
for (; __iter;)
{
__gnu_debug::_Safe_iterator_base* __old = __iter;
__iter = __iter->_M_next;
__old->_M_reset();
}
}
} // anonymous namespace
namespace __gnu_debug
{
const char* _S_debug_messages[] =
{
// General Checks
"function requires a valid iterator range [%1.name;, %2.name;)",
"attempt to insert into container with a singular iterator",
"attempt to insert into container with an iterator"
" from a different container",
"attempt to erase from container with a %2.state; iterator",
"attempt to erase from container with an iterator"
" from a different container",
"attempt to subscript container with out-of-bounds index %2;,"
" but container only holds %3; elements",
"attempt to access an element in an empty container",
"elements in iterator range [%1.name;, %2.name;)"
" are not partitioned by the value %3;",
"elements in iterator range [%1.name;, %2.name;)"
" are not partitioned by the predicate %3; and value %4;",
"elements in iterator range [%1.name;, %2.name;) are not sorted",
"elements in iterator range [%1.name;, %2.name;)"
" are not sorted according to the predicate %3;",
"elements in iterator range [%1.name;, %2.name;) do not form a heap",
"elements in iterator range [%1.name;, %2.name;)"
" do not form a heap with respect to the predicate %3;",
// std::bitset checks
"attempt to write through a singular bitset reference",
"attempt to read from a singular bitset reference",
"attempt to flip a singular bitset reference",
// std::list checks
"attempt to splice a list into itself",
"attempt to splice lists with unequal allocators",
"attempt to splice elements referenced by a %1.state; iterator",
"attempt to splice an iterator from a different container",
"splice destination %1.name;"
" occurs within source range [%2.name;, %3.name;)",
// iterator checks
"attempt to initialize an iterator that will immediately become singular",
"attempt to copy-construct an iterator from a singular iterator",
"attempt to construct a constant iterator"
" from a singular mutable iterator",
"attempt to copy from a singular iterator",
"attempt to dereference a %1.state; iterator",
"attempt to increment a %1.state; iterator",
"attempt to decrement a %1.state; iterator",
"attempt to subscript a %1.state; iterator %2; step from"
" its current position, which falls outside its dereferenceable range",
"attempt to advance a %1.state; iterator %2; steps,"
" which falls outside its valid range",
"attempt to retreat a %1.state; iterator %2; steps,"
" which falls outside its valid range",
"attempt to compare a %1.state; iterator to a %2.state; iterator",
"attempt to compare iterators from different sequences",
"attempt to order a %1.state; iterator to a %2.state; iterator",
"attempt to order iterators from different sequences",
"attempt to compute the difference between a %1.state;"
" iterator to a %2.state; iterator",
"attempt to compute the different between two iterators"
" from different sequences",
// istream_iterator
"attempt to dereference an end-of-stream istream_iterator",
"attempt to increment an end-of-stream istream_iterator",
// ostream_iterator
"attempt to output via an ostream_iterator with no associated stream",
// istreambuf_iterator
"attempt to dereference an end-of-stream istreambuf_iterator"
" (this is a GNU extension)",
"attempt to increment an end-of-stream istreambuf_iterator",
// std::forward_list
"attempt to insert into container after an end iterator",
"attempt to erase from container after a %2.state; iterator not followed"
" by a dereferenceable one",
"function requires a valid iterator range (%2.name;, %3.name;)"
", \"%2.name;\" shall be before and not equal to \"%3.name;\"",
// std::unordered_container::local_iterator
"attempt to compare local iterators from different unordered container"
" buckets",
"function requires a non-empty iterator range [%1.name;, %2.name;)",
"attempt to self move assign",
"attempt to access container with out-of-bounds bucket index %2;,"
" container only holds %3; buckets",
"load factor shall be positive",
"allocators must be equal"
};
void
_Safe_sequence_base::
_M_detach_all()
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
detach_all(_M_iterators);
_M_iterators = 0;
detach_all(_M_const_iterators);
_M_const_iterators = 0;
}
void
_Safe_sequence_base::
_M_detach_singular()
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
for (_Safe_iterator_base* __iter = _M_iterators; __iter;)
{
_Safe_iterator_base* __old = __iter;
__iter = __iter->_M_next;
if (__old->_M_singular())
__old->_M_detach_single();
}
for (_Safe_iterator_base* __iter2 = _M_const_iterators; __iter2;)
{
_Safe_iterator_base* __old = __iter2;
__iter2 = __iter2->_M_next;
if (__old->_M_singular())
__old->_M_detach_single();
}
}
void
_Safe_sequence_base::
_M_revalidate_singular()
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
for (_Safe_iterator_base* __iter = _M_iterators; __iter;
__iter = __iter->_M_next)
__iter->_M_version = _M_version;
for (_Safe_iterator_base* __iter2 = _M_const_iterators; __iter2;
__iter2 = __iter2->_M_next)
__iter2->_M_version = _M_version;
}
void
_Safe_sequence_base::
_M_swap(_Safe_sequence_base& __x)
{
// We need to lock both sequences to swap
using namespace __gnu_cxx;
__mutex *__this_mutex = &_M_get_mutex();
__mutex *__x_mutex = &__x._M_get_mutex();
if (__this_mutex == __x_mutex)
{
__scoped_lock __lock(*__this_mutex);
swap_seq(*this, __x);
}
else
{
__scoped_lock __l1(__this_mutex < __x_mutex
? *__this_mutex : *__x_mutex);
__scoped_lock __l2(__this_mutex < __x_mutex
? *__x_mutex : *__this_mutex);
swap_seq(*this, __x);
}
}
__gnu_cxx::__mutex&
_Safe_sequence_base::
_M_get_mutex() throw ()
{ return get_safe_base_mutex(this); }
void
_Safe_sequence_base::
_M_attach(_Safe_iterator_base* __it, bool __constant)
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
_M_attach_single(__it, __constant);
}
void
_Safe_sequence_base::
_M_attach_single(_Safe_iterator_base* __it, bool __constant) throw ()
{
_Safe_iterator_base*& __its =
__constant ? _M_const_iterators : _M_iterators;
__it->_M_next = __its;
if (__it->_M_next)
__it->_M_next->_M_prior = __it;
__its = __it;
}
void
_Safe_sequence_base::
_M_detach(_Safe_iterator_base* __it)
{
// Remove __it from this sequence's list
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
_M_detach_single(__it);
}
void
_Safe_sequence_base::
_M_detach_single(_Safe_iterator_base* __it) throw ()
{
// Remove __it from this sequence's list
__it->_M_unlink();
if (_M_const_iterators == __it)
_M_const_iterators = __it->_M_next;
if (_M_iterators == __it)
_M_iterators = __it->_M_next;
}
void
_Safe_iterator_base::
_M_attach(_Safe_sequence_base* __seq, bool __constant)
{
_M_detach();
// Attach to the new sequence (if there is one)
if (__seq)
{
_M_sequence = __seq;
_M_version = _M_sequence->_M_version;
_M_sequence->_M_attach(this, __constant);
}
}
void
_Safe_iterator_base::
_M_attach_single(_Safe_sequence_base* __seq, bool __constant) throw ()
{
_M_detach_single();
// Attach to the new sequence (if there is one)
if (__seq)
{
_M_sequence = __seq;
_M_version = _M_sequence->_M_version;
_M_sequence->_M_attach_single(this, __constant);
}
}
void
_Safe_iterator_base::
_M_detach()
{
if (_M_sequence)
_M_sequence->_M_detach(this);
_M_reset();
}
void
_Safe_iterator_base::
_M_detach_single() throw ()
{
if (_M_sequence)
_M_sequence->_M_detach_single(this);
_M_reset();
}
void
_Safe_iterator_base::
_M_reset() throw ()
{
_M_sequence = 0;
_M_version = 0;
_M_prior = 0;
_M_next = 0;
}
bool
_Safe_iterator_base::
_M_singular() const throw ()
{ return !_M_sequence || _M_version != _M_sequence->_M_version; }
bool
_Safe_iterator_base::
_M_can_compare(const _Safe_iterator_base& __x) const throw ()
{
return (!_M_singular()
&& !__x._M_singular() && _M_sequence == __x._M_sequence);
}
__gnu_cxx::__mutex&
_Safe_iterator_base::
_M_get_mutex() throw ()
{ return get_safe_base_mutex(_M_sequence); }
_Safe_unordered_container_base*
_Safe_local_iterator_base::
_M_get_container() const _GLIBCXX_NOEXCEPT
{ return static_cast<_Safe_unordered_container_base*>(_M_sequence); }
void
_Safe_local_iterator_base::
_M_attach(_Safe_sequence_base* __cont, bool __constant)
{
_M_detach();
// Attach to the new container (if there is one)
if (__cont)
{
_M_sequence = __cont;
_M_version = _M_sequence->_M_version;
_M_get_container()->_M_attach_local(this, __constant);
}
}
void
_Safe_local_iterator_base::
_M_attach_single(_Safe_sequence_base* __cont, bool __constant) throw ()
{
_M_detach_single();
// Attach to the new container (if there is one)
if (__cont)
{
_M_sequence = __cont;
_M_version = _M_sequence->_M_version;
_M_get_container()->_M_attach_local_single(this, __constant);
}
}
void
_Safe_local_iterator_base::
_M_detach()
{
if (_M_sequence)
_M_get_container()->_M_detach_local(this);
_M_reset();
}
void
_Safe_local_iterator_base::
_M_detach_single() throw ()
{
if (_M_sequence)
_M_get_container()->_M_detach_local_single(this);
_M_reset();
}
void
_Safe_unordered_container_base::
_M_detach_all()
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
detach_all(_M_iterators);
_M_iterators = 0;
detach_all(_M_const_iterators);
_M_const_iterators = 0;
detach_all(_M_local_iterators);
_M_local_iterators = 0;
detach_all(_M_const_local_iterators);
_M_const_local_iterators = 0;
}
void
_Safe_unordered_container_base::
_M_swap(_Safe_unordered_container_base& __x)
{
// We need to lock both containers to swap
using namespace __gnu_cxx;
__mutex *__this_mutex = &_M_get_mutex();
__mutex *__x_mutex = &__x._M_get_mutex();
if (__this_mutex == __x_mutex)
{
__scoped_lock __lock(*__this_mutex);
swap_ucont(*this, __x);
}
else
{
__scoped_lock __l1(__this_mutex < __x_mutex
? *__this_mutex : *__x_mutex);
__scoped_lock __l2(__this_mutex < __x_mutex
? *__x_mutex : *__this_mutex);
swap_ucont(*this, __x);
}
}
void
_Safe_unordered_container_base::
_M_attach_local(_Safe_iterator_base* __it, bool __constant)
{
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
_M_attach_local_single(__it, __constant);
}
void
_Safe_unordered_container_base::
_M_attach_local_single(_Safe_iterator_base* __it, bool __constant) throw ()
{
_Safe_iterator_base*& __its =
__constant ? _M_const_local_iterators : _M_local_iterators;
__it->_M_next = __its;
if (__it->_M_next)
__it->_M_next->_M_prior = __it;
__its = __it;
}
void
_Safe_unordered_container_base::
_M_detach_local(_Safe_iterator_base* __it)
{
// Remove __it from this container's list
__gnu_cxx::__scoped_lock sentry(_M_get_mutex());
_M_detach_local_single(__it);
}
void
_Safe_unordered_container_base::
_M_detach_local_single(_Safe_iterator_base* __it) throw ()
{
// Remove __it from this container's list
__it->_M_unlink();
if (_M_const_local_iterators == __it)
_M_const_local_iterators = __it->_M_next;
if (_M_local_iterators == __it)
_M_local_iterators = __it->_M_next;
}
void
_Error_formatter::_Parameter::
_M_print_field(const _Error_formatter* __formatter, const char* __name) const
{
assert(this->_M_kind != _Parameter::__unused_param);
const int __bufsize = 64;
char __buf[__bufsize];
if (_M_kind == __iterator)
{
if (strcmp(__name, "name") == 0)
{
assert(_M_variant._M_iterator._M_name);
__formatter->_M_print_word(_M_variant._M_iterator._M_name);
}
else if (strcmp(__name, "address") == 0)
{
__formatter->_M_format_word(__buf, __bufsize, "%p",
_M_variant._M_iterator._M_address);
__formatter->_M_print_word(__buf);
}
else if (strcmp(__name, "type") == 0)
{
if (!_M_variant._M_iterator._M_type)
__formatter->_M_print_word("<unknown type>");
else
// TBD: demangle!
__formatter->_M_print_word(_M_variant._M_iterator.
_M_type->name());
}
else if (strcmp(__name, "constness") == 0)
{
static const char* __constness_names[__last_constness] =
{
"<unknown>",
"constant",
"mutable"
};
__formatter->_M_print_word(__constness_names[_M_variant.
_M_iterator.
_M_constness]);
}
else if (strcmp(__name, "state") == 0)
{
static const char* __state_names[__last_state] =
{
"<unknown>",
"singular",
"dereferenceable (start-of-sequence)",
"dereferenceable",
"past-the-end",
"before-begin"
};
__formatter->_M_print_word(__state_names[_M_variant.
_M_iterator._M_state]);
}
else if (strcmp(__name, "sequence") == 0)
{
assert(_M_variant._M_iterator._M_sequence);
__formatter->_M_format_word(__buf, __bufsize, "%p",
_M_variant._M_iterator._M_sequence);
__formatter->_M_print_word(__buf);
}
else if (strcmp(__name, "seq_type") == 0)
{
if (!_M_variant._M_iterator._M_seq_type)
__formatter->_M_print_word("<unknown seq_type>");
else
// TBD: demangle!
__formatter->_M_print_word(_M_variant._M_iterator.
_M_seq_type->name());
}
else
assert(false);
}
else if (_M_kind == __sequence)
{
if (strcmp(__name, "name") == 0)
{
assert(_M_variant._M_sequence._M_name);
__formatter->_M_print_word(_M_variant._M_sequence._M_name);
}
else if (strcmp(__name, "address") == 0)
{
assert(_M_variant._M_sequence._M_address);
__formatter->_M_format_word(__buf, __bufsize, "%p",
_M_variant._M_sequence._M_address);
__formatter->_M_print_word(__buf);
}
else if (strcmp(__name, "type") == 0)
{
if (!_M_variant._M_sequence._M_type)
__formatter->_M_print_word("<unknown type>");
else
// TBD: demangle!
__formatter->_M_print_word(_M_variant._M_sequence.
_M_type->name());
}
else
assert(false);
}
else if (_M_kind == __integer)
{
if (strcmp(__name, "name") == 0)
{
assert(_M_variant._M_integer._M_name);
__formatter->_M_print_word(_M_variant._M_integer._M_name);
}
else
assert(false);
}
else if (_M_kind == __string)
{
if (strcmp(__name, "name") == 0)
{
assert(_M_variant._M_string._M_name);
__formatter->_M_print_word(_M_variant._M_string._M_name);
}
else
assert(false);
}
else
{
assert(false);
}
}
void
_Error_formatter::_Parameter::
_M_print_description(const _Error_formatter* __formatter) const
{
const int __bufsize = 128;
char __buf[__bufsize];
if (_M_kind == __iterator)
{
__formatter->_M_print_word("iterator ");
if (_M_variant._M_iterator._M_name)
{
__formatter->_M_format_word(__buf, __bufsize, "\"%s\" ",
_M_variant._M_iterator._M_name);
__formatter->_M_print_word(__buf);
}
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p {\n",
_M_variant._M_iterator._M_address);
__formatter->_M_print_word(__buf);
if (_M_variant._M_iterator._M_type)
{
__formatter->_M_print_word("type = ");
_M_print_field(__formatter, "type");
if (_M_variant._M_iterator._M_constness != __unknown_constness)
{
__formatter->_M_print_word(" (");
_M_print_field(__formatter, "constness");
__formatter->_M_print_word(" iterator)");
}
__formatter->_M_print_word(";\n");
}
if (_M_variant._M_iterator._M_state != __unknown_state)
{
__formatter->_M_print_word(" state = ");
_M_print_field(__formatter, "state");
__formatter->_M_print_word(";\n");
}
if (_M_variant._M_iterator._M_sequence)
{
__formatter->_M_print_word(" references sequence ");
if (_M_variant._M_iterator._M_seq_type)
{
__formatter->_M_print_word("with type `");
_M_print_field(__formatter, "seq_type");
__formatter->_M_print_word("' ");
}
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p\n",
_M_variant._M_sequence._M_address);
__formatter->_M_print_word(__buf);
}
__formatter->_M_print_word("}\n");
}
else if (_M_kind == __sequence)
{
__formatter->_M_print_word("sequence ");
if (_M_variant._M_sequence._M_name)
{
__formatter->_M_format_word(__buf, __bufsize, "\"%s\" ",
_M_variant._M_sequence._M_name);
__formatter->_M_print_word(__buf);
}
__formatter->_M_format_word(__buf, __bufsize, "@ 0x%p {\n",
_M_variant._M_sequence._M_address);
__formatter->_M_print_word(__buf);
if (_M_variant._M_sequence._M_type)
{
__formatter->_M_print_word(" type = ");
_M_print_field(__formatter, "type");
__formatter->_M_print_word(";\n");
}
__formatter->_M_print_word("}\n");
}
}
const _Error_formatter&
_Error_formatter::_M_message(_Debug_msg_id __id) const throw ()
{ return this->_M_message(_S_debug_messages[__id]); }
void
_Error_formatter::_M_error() const
{
const int __bufsize = 128;
char __buf[__bufsize];
// Emit file & line number information
_M_column = 1;
_M_wordwrap = false;
if (_M_file)
{
_M_format_word(__buf, __bufsize, "%s:", _M_file);
_M_print_word(__buf);
_M_column += strlen(__buf);
}
if (_M_line > 0)
{
_M_format_word(__buf, __bufsize, "%u:", _M_line);
_M_print_word(__buf);
_M_column += strlen(__buf);
}
if (_M_max_length)
_M_wordwrap = true;
_M_print_word("error: ");
// Print the error message
assert(_M_text);
_M_print_string(_M_text);
_M_print_word(".\n");
// Emit descriptions of the objects involved in the operation
_M_wordwrap = false;
bool __has_noninteger_parameters = false;
for (unsigned int __i = 0; __i < _M_num_parameters; ++__i)
{
if (_M_parameters[__i]._M_kind == _Parameter::__iterator
|| _M_parameters[__i]._M_kind == _Parameter::__sequence)
{
if (!__has_noninteger_parameters)
{
_M_first_line = true;
_M_print_word("\nObjects involved in the operation:\n");
__has_noninteger_parameters = true;
}
_M_parameters[__i]._M_print_description(this);
}
}
abort();
}
template<typename _Tp>
void
_Error_formatter::_M_format_word(char* __buf,
int __n __attribute__ ((__unused__)),
const char* __fmt, _Tp __s) const throw ()
{
#ifdef _GLIBCXX_USE_C99
std::snprintf(__buf, __n, __fmt, __s);
#else
std::sprintf(__buf, __fmt, __s);
#endif
}
void
_Error_formatter::_M_print_word(const char* __word) const
{
if (!_M_wordwrap)
{
fprintf(stderr, "%s", __word);
return;
}
size_t __length = strlen(__word);
if (__length == 0)
return;
if ((_M_column + __length < _M_max_length)
|| (__length >= _M_max_length && _M_column == 1))
{
// If this isn't the first line, indent
if (_M_column == 1 && !_M_first_line)
{
char __spacing[_M_indent + 1];
for (int i = 0; i < _M_indent; ++i)
__spacing[i] = ' ';
__spacing[_M_indent] = '\0';
fprintf(stderr, "%s", __spacing);
_M_column += _M_indent;
}
fprintf(stderr, "%s", __word);
_M_column += __length;
if (__word[__length - 1] == '\n')
{
_M_first_line = false;
_M_column = 1;
}
}
else
{
_M_column = 1;
_M_print_word("\n");
_M_print_word(__word);
}
}
void
_Error_formatter::
_M_print_string(const char* __string) const
{
const char* __start = __string;
const char* __finish = __start;
const int __bufsize = 128;
char __buf[__bufsize];
while (*__start)
{
if (*__start != '%')
{
// [__start, __finish) denotes the next word
__finish = __start;
while (isalnum(*__finish))
++__finish;
if (__start == __finish)
++__finish;
if (isspace(*__finish))
++__finish;
const ptrdiff_t __len = __finish - __start;
assert(__len < __bufsize);
memcpy(__buf, __start, __len);
__buf[__len] = '\0';
_M_print_word(__buf);
__start = __finish;
// Skip extra whitespace
while (*__start == ' ')
++__start;
continue;
}
++__start;
assert(*__start);
if (*__start == '%')
{
_M_print_word("%");
++__start;
continue;
}
// Get the parameter number
assert(*__start >= '1' && *__start <= '9');
size_t __param = *__start - '0';
--__param;
assert(__param < _M_num_parameters);
// '.' separates the parameter number from the field
// name, if there is one.
++__start;
if (*__start != '.')
{
assert(*__start == ';');
++__start;
__buf[0] = '\0';
if (_M_parameters[__param]._M_kind == _Parameter::__integer)
{
_M_format_word(__buf, __bufsize, "%ld",
_M_parameters[__param]._M_variant._M_integer._M_value);
_M_print_word(__buf);
}
else if (_M_parameters[__param]._M_kind == _Parameter::__string)
_M_print_string(_M_parameters[__param]._M_variant._M_string._M_value);
continue;
}
// Extract the field name we want
enum { __max_field_len = 16 };
char __field[__max_field_len];
int __field_idx = 0;
++__start;
while (*__start != ';')
{
assert(*__start);
assert(__field_idx < __max_field_len-1);
__field[__field_idx++] = *__start++;
}
++__start;
__field[__field_idx] = 0;
_M_parameters[__param]._M_print_field(this, __field);
}
}
void
_Error_formatter::_M_get_max_length() const throw ()
{
const char* __nptr = std::getenv("GLIBCXX_DEBUG_MESSAGE_LENGTH");
if (__nptr)
{
char* __endptr;
const unsigned long __ret = std::strtoul(__nptr, &__endptr, 0);
if (*__nptr != '\0' && *__endptr == '\0')
_M_max_length = __ret;
}
}
// Instantiations.
template
void
_Error_formatter::_M_format_word(char*, int, const char*,
const void*) const;
template
void
_Error_formatter::_M_format_word(char*, int, const char*, long) const;
template
void
_Error_formatter::_M_format_word(char*, int, const char*,
std::size_t) const;
template
void
_Error_formatter::_M_format_word(char*, int, const char*,
const char*) const;
} // namespace __gnu_debug