throw_allocator.h
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// -*- C++ -*-
// Copyright (C) 2005-2026 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/>.
// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice
// and this permission notice appear in supporting documentation. None
// of the above authors, nor IBM Haifa Research Laboratories, make any
// representation about the suitability of this software for any
// purpose. It is provided "as is" without express or implied
// warranty.
/** @file ext/throw_allocator.h
* This file is a GNU extension to the Standard C++ Library.
*
* Contains two exception-generating types (throw_value, throw_allocator)
* intended to be used as value and allocator types while testing
* exception safety in templatized containers and algorithms. The
* allocator has additional log and debug features. The exception
* generated is of type forced_exception_error.
*/
#ifndef _THROW_ALLOCATOR_H
#define _THROW_ALLOCATOR_H 1
#include <bits/requires_hosted.h> // GNU extensions are currently omitted
#include <cmath>
#include <ctime>
#include <map>
#include <string>
#include <ostream>
#include <stdexcept>
#include <utility>
#include <bits/new_throw.h>
#include <bits/stdexcept_throw.h>
#include <bits/move.h>
#if __cplusplus >= 201103L
# include <functional>
# include <random>
#else
# include <tr1/functional>
# include <tr1/random>
#endif
#include <ext/alloc_traits.h>
#if !__has_builtin(__builtin_sprintf)
# include <cstdio>
#endif
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @brief Thrown by utilities for testing exception safety.
* @ingroup exceptions
*/
struct forced_error : public std::exception
{ };
// Substitute for forced_error object when -fno-exceptions.
inline void
__throw_forced_error()
{ _GLIBCXX_THROW_OR_ABORT(forced_error()); }
/**
* @brief Base class for checking address and label information
* about allocations. Create a std::map between the allocated
* address (void*) and a datum for annotations, which are a pair of
* numbers corresponding to label and allocated size.
*/
struct annotate_base
{
private:
typedef std::pair<size_t, size_t> data_type;
typedef std::map<void*, data_type> map_alloc_type;
typedef map_alloc_type::value_type entry_type;
typedef map_alloc_type::const_iterator const_iterator;
typedef map_alloc_type::const_reference const_reference;
#if __cplusplus >= 201103L
typedef std::map<void*, size_t> map_construct_type;
#endif
public:
annotate_base()
{
label();
map_alloc();
}
static void
set_label(size_t l)
{ label() = l; }
static size_t
get_label()
{ return label(); }
void
insert(void* p, size_t size)
{
entry_type entry = make_entry(p, size);
if (!p)
{
std::string error("annotate_base::insert null insert!\n");
log_to_string(error, entry);
std::__throw_logic_error(error.c_str());
}
std::pair<map_alloc_type::iterator, bool> inserted
= map_alloc().insert(entry);
if (!inserted.second)
{
std::string error("annotate_base::insert double insert!\n");
log_to_string(error, entry);
log_to_string(error, *inserted.first);
std::__throw_logic_error(error.c_str());
}
}
void
erase(void* p, size_t size)
{ map_alloc().erase(check_allocated(p, size)); }
#if __cplusplus >= 201103L
void
insert_construct(void* p)
{
if (!p)
{
std::string error("annotate_base::insert_construct null!\n");
std::__throw_logic_error(error.c_str());
}
auto inserted = map_construct().insert(std::make_pair(p, get_label()));
if (!inserted.second)
{
std::string error("annotate_base::insert_construct double insert!\n");
log_to_string(error, std::make_pair(p, get_label()));
log_to_string(error, *inserted.first);
std::__throw_logic_error(error.c_str());
}
}
void
erase_construct(void* p)
{ map_construct().erase(check_constructed(p)); }
#endif
// See if a particular address and allocation size has been saved.
inline map_alloc_type::iterator
check_allocated(void* p, size_t size)
{
map_alloc_type::iterator found = map_alloc().find(p);
if (found == map_alloc().end())
{
std::string error("annotate_base::check_allocated by value "
"null erase!\n");
log_to_string(error, make_entry(p, size));
std::__throw_logic_error(error.c_str());
}
if (found->second.second != size)
{
std::string error("annotate_base::check_allocated by value "
"wrong-size erase!\n");
log_to_string(error, make_entry(p, size));
log_to_string(error, *found);
std::__throw_logic_error(error.c_str());
}
return found;
}
// See if a given label has been allocated.
inline void
check(size_t label)
{
std::string found;
{
const_iterator beg = map_alloc().begin();
const_iterator end = map_alloc().end();
while (beg != end)
{
if (beg->second.first == label)
log_to_string(found, *beg);
++beg;
}
}
#if __cplusplus >= 201103L
{
auto beg = map_construct().begin();
auto end = map_construct().end();
while (beg != end)
{
if (beg->second == label)
log_to_string(found, *beg);
++beg;
}
}
#endif
if (!found.empty())
{
std::string error("annotate_base::check by label\n");
error += found;
std::__throw_logic_error(error.c_str());
}
}
// See if there is anything left allocated or constructed.
inline static void
check()
{
std::string found;
{
const_iterator beg = map_alloc().begin();
const_iterator end = map_alloc().end();
while (beg != end)
{
log_to_string(found, *beg);
++beg;
}
}
#if __cplusplus >= 201103L
{
auto beg = map_construct().begin();
auto end = map_construct().end();
while (beg != end)
{
log_to_string(found, *beg);
++beg;
}
}
#endif
if (!found.empty())
{
std::string error("annotate_base::check \n");
error += found;
std::__throw_logic_error(error.c_str());
}
}
#if __cplusplus >= 201103L
inline map_construct_type::iterator
check_constructed(void* p)
{
auto found = map_construct().find(p);
if (found == map_construct().end())
{
std::string error("annotate_base::check_constructed not "
"constructed!\n");
log_to_string(error, std::make_pair(p, get_label()));
std::__throw_logic_error(error.c_str());
}
return found;
}
inline void
check_constructed(size_t label)
{
auto beg = map_construct().begin();
auto end = map_construct().end();
std::string found;
while (beg != end)
{
if (beg->second == label)
log_to_string(found, *beg);
++beg;
}
if (!found.empty())
{
std::string error("annotate_base::check_constructed by label\n");
error += found;
std::__throw_logic_error(error.c_str());
}
}
#endif
private:
friend std::ostream&
operator<<(std::ostream&, const annotate_base&);
entry_type
make_entry(void* p, size_t size)
{ return std::make_pair(p, data_type(get_label(), size)); }
static void
log_to_string(std::string& s, const_reference ref)
{
#if ! __has_builtin(__builtin_sprintf)
__typeof__(&std::sprintf) __builtin_sprintf = &std::sprintf;
#endif
char buf[40];
const char tab('\t');
s += "label: ";
unsigned long l = static_cast<unsigned long>(ref.second.first);
__builtin_sprintf(buf, "%lu", l);
s += buf;
s += tab;
s += "size: ";
l = static_cast<unsigned long>(ref.second.second);
__builtin_sprintf(buf, "%lu", l);
s += buf;
s += tab;
s += "address: ";
__builtin_sprintf(buf, "%p", ref.first);
s += buf;
s += '\n';
}
#if __cplusplus >= 201103L
static void
log_to_string(std::string& s, const std::pair<const void*, size_t>& ref)
{
#if ! __has_builtin(__builtin_sprintf)
auto __builtin_sprintf = &std::sprintf;
#endif
char buf[40];
const char tab('\t');
s += "label: ";
unsigned long l = static_cast<unsigned long>(ref.second);
__builtin_sprintf(buf, "%lu", l);
s += buf;
s += tab;
s += "address: ";
__builtin_sprintf(buf, "%p", ref.first);
s += buf;
s += '\n';
}
#endif
static size_t&
label()
{
static size_t _S_label(std::numeric_limits<size_t>::max());
return _S_label;
}
static map_alloc_type&
map_alloc()
{
static map_alloc_type _S_map;
return _S_map;
}
#if __cplusplus >= 201103L
static map_construct_type&
map_construct()
{
static map_construct_type _S_map;
return _S_map;
}
#endif
};
inline std::ostream&
operator<<(std::ostream& os, const annotate_base& __b)
{
std::string error;
typedef annotate_base base_type;
{
base_type::const_iterator beg = __b.map_alloc().begin();
base_type::const_iterator end = __b.map_alloc().end();
for (; beg != end; ++beg)
__b.log_to_string(error, *beg);
}
#if __cplusplus >= 201103L
{
auto beg = __b.map_construct().begin();
auto end = __b.map_construct().end();
for (; beg != end; ++beg)
__b.log_to_string(error, *beg);
}
#endif
return os << error;
}
/**
* @brief Base struct for condition policy.
*
* Requires a public member function with the signature
* void throw_conditionally()
*/
struct condition_base
{
#if __cplusplus >= 201103L
condition_base() = default;
condition_base(const condition_base&) = default;
condition_base& operator=(const condition_base&) = default;
#endif
virtual ~condition_base() { };
};
/**
* @brief Base class for incremental control and throw.
*/
struct limit_condition : public condition_base
{
// Scope-level adjustor objects: set limit for throw at the
// beginning of a scope block, and restores to previous limit when
// object is destroyed on exiting the block.
struct adjustor_base
{
private:
const size_t _M_orig;
public:
adjustor_base() : _M_orig(limit()) { }
virtual
~adjustor_base() { set_limit(_M_orig); }
};
/// Never enter the condition.
struct never_adjustor : public adjustor_base
{
never_adjustor() { set_limit(std::numeric_limits<size_t>::max()); }
};
/// Always enter the condition.
struct always_adjustor : public adjustor_base
{
always_adjustor() { set_limit(count()); }
};
/// Enter the nth condition.
struct limit_adjustor : public adjustor_base
{
limit_adjustor(const size_t __l) { set_limit(__l); }
};
// Increment _S_count every time called.
// If _S_count matches the limit count, throw.
static void
throw_conditionally()
{
if (count() == limit())
__throw_forced_error();
++count();
}
static size_t&
count()
{
static size_t _S_count(0);
return _S_count;
}
static size_t&
limit()
{
static size_t _S_limit(std::numeric_limits<size_t>::max());
return _S_limit;
}
// Zero the throw counter, set limit to argument.
static void
set_limit(const size_t __l)
{
limit() = __l;
count() = 0;
}
};
/**
* @brief Base class for random probability control and throw.
*/
struct random_condition : public condition_base
{
// Scope-level adjustor objects: set probability for throw at the
// beginning of a scope block, and restores to previous
// probability when object is destroyed on exiting the block.
struct adjustor_base
{
private:
const double _M_orig;
public:
adjustor_base() : _M_orig(probability()) { }
virtual ~adjustor_base()
{ set_probability(_M_orig); }
};
/// Group condition.
struct group_adjustor : public adjustor_base
{
group_adjustor(size_t size)
{ set_probability(1 - std::pow(double(1 - probability()),
double(0.5 / (size + 1))));
}
};
/// Never enter the condition.
struct never_adjustor : public adjustor_base
{
never_adjustor() { set_probability(0); }
};
/// Always enter the condition.
struct always_adjustor : public adjustor_base
{
always_adjustor() { set_probability(1); }
};
random_condition()
{
probability();
engine();
}
static void
set_probability(double __p)
{ probability() = __p; }
static void
throw_conditionally()
{
if (generate() < probability())
__throw_forced_error();
}
void
seed(unsigned long __s)
{ engine().seed(__s); }
private:
#if __cplusplus >= 201103L
typedef std::uniform_real_distribution<double> distribution_type;
typedef std::mt19937 engine_type;
#else
typedef std::tr1::uniform_real<double> distribution_type;
typedef std::tr1::mt19937 engine_type;
#endif
static double
generate()
{
#if __cplusplus >= 201103L
const distribution_type distribution(0, 1);
static auto generator = std::bind(distribution, engine());
#else
// Use variate_generator to get normalized results.
typedef std::tr1::variate_generator<engine_type, distribution_type> gen_t;
distribution_type distribution(0, 1);
static gen_t generator(engine(), distribution);
#endif
#if ! __has_builtin(__builtin_sprintf)
__typeof__(&std::sprintf) __builtin_sprintf = &std::sprintf;
#endif
double random = generator();
if (random < distribution.min() || random > distribution.max())
{
std::string __s("random_condition::generate");
__s += "\n";
__s += "random number generated is: ";
char buf[40];
__builtin_sprintf(buf, "%f", random);
__s += buf;
std::__throw_out_of_range(__s.c_str());
}
return random;
}
static double&
probability()
{
static double _S_p;
return _S_p;
}
static engine_type&
engine()
{
static engine_type _S_e;
return _S_e;
}
};
/**
* @brief Class with exception generation control. Intended to be
* used as a value_type in templatized code.
*
* Note: Destructor not allowed to throw.
*/
template<typename _Cond>
struct throw_value_base : public _Cond
{
typedef _Cond condition_type;
using condition_type::throw_conditionally;
std::size_t _M_i;
#ifndef _GLIBCXX_IS_AGGREGATE
throw_value_base() : _M_i(0)
{ throw_conditionally(); }
throw_value_base(const throw_value_base& __v) : _M_i(__v._M_i)
{ throw_conditionally(); }
#if __cplusplus >= 201103L
// Shall not throw.
throw_value_base(throw_value_base&&) = default;
#endif
explicit throw_value_base(const std::size_t __i) : _M_i(__i)
{ throw_conditionally(); }
#endif
throw_value_base&
operator=(const throw_value_base& __v)
{
throw_conditionally();
_M_i = __v._M_i;
return *this;
}
#if __cplusplus >= 201103L
// Shall not throw.
throw_value_base&
operator=(throw_value_base&&) = default;
#endif
throw_value_base&
operator++()
{
throw_conditionally();
++_M_i;
return *this;
}
};
template<typename _Cond>
inline void
swap(throw_value_base<_Cond>& __a, throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
throw_value orig(__a);
__a = __b;
__b = orig;
}
// General instantiable types requirements.
template<typename _Cond>
inline bool
operator==(const throw_value_base<_Cond>& __a,
const throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
bool __ret = __a._M_i == __b._M_i;
return __ret;
}
template<typename _Cond>
inline bool
operator<(const throw_value_base<_Cond>& __a,
const throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
bool __ret = __a._M_i < __b._M_i;
return __ret;
}
// Numeric algorithms instantiable types requirements.
template<typename _Cond>
inline throw_value_base<_Cond>
operator+(const throw_value_base<_Cond>& __a,
const throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
throw_value __ret(__a._M_i + __b._M_i);
return __ret;
}
template<typename _Cond>
inline throw_value_base<_Cond>
operator-(const throw_value_base<_Cond>& __a,
const throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
throw_value __ret(__a._M_i - __b._M_i);
return __ret;
}
template<typename _Cond>
inline throw_value_base<_Cond>
operator*(const throw_value_base<_Cond>& __a,
const throw_value_base<_Cond>& __b)
{
typedef throw_value_base<_Cond> throw_value;
throw_value::throw_conditionally();
throw_value __ret(__a._M_i * __b._M_i);
return __ret;
}
/// Type throwing via limit condition.
struct throw_value_limit : public throw_value_base<limit_condition>
{
typedef throw_value_base<limit_condition> base_type;
#ifndef _GLIBCXX_IS_AGGREGATE
throw_value_limit() { }
throw_value_limit(const throw_value_limit& __other)
: base_type(__other._M_i) { }
#if __cplusplus >= 201103L
throw_value_limit(throw_value_limit&&) = default;
#endif
explicit throw_value_limit(const std::size_t __i) : base_type(__i) { }
#endif
throw_value_limit&
operator=(const throw_value_limit& __other)
{
base_type::operator=(__other);
return *this;
}
#if __cplusplus >= 201103L
throw_value_limit&
operator=(throw_value_limit&&) = default;
#endif
};
/// Type throwing via random condition.
struct throw_value_random : public throw_value_base<random_condition>
{
typedef throw_value_base<random_condition> base_type;
#ifndef _GLIBCXX_IS_AGGREGATE
throw_value_random() { }
throw_value_random(const throw_value_random& __other)
: base_type(__other._M_i) { }
#if __cplusplus >= 201103L
throw_value_random(throw_value_random&&) = default;
#endif
explicit throw_value_random(const std::size_t __i) : base_type(__i) { }
#endif
throw_value_random&
operator=(const throw_value_random& __other)
{
base_type::operator=(__other);
return *this;
}
#if __cplusplus >= 201103L
throw_value_random&
operator=(throw_value_random&&) = default;
#endif
};
/**
* @brief Allocator class with logging and exception generation control.
* Intended to be used as an allocator_type in templatized code.
* @ingroup allocators
*
* Note: Deallocate not allowed to throw.
*/
template<typename _Tp, typename _Cond>
class throw_allocator_base
: public annotate_base, public _Cond
{
public:
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef _Tp value_type;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef value_type& reference;
typedef const value_type& const_reference;
#if __cplusplus >= 201103L
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 2103. std::allocator propagate_on_container_move_assignment
typedef std::true_type propagate_on_container_move_assignment;
#endif
private:
typedef _Cond condition_type;
std::allocator<value_type> _M_allocator;
typedef __gnu_cxx::__alloc_traits<std::allocator<value_type> > traits;
using condition_type::throw_conditionally;
public:
size_type
max_size() const _GLIBCXX_USE_NOEXCEPT
{ return traits::max_size(_M_allocator); }
pointer
address(reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
const_pointer
address(const_reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* __hint = 0)
{
if (__n > this->max_size())
std::__throw_bad_alloc();
throw_conditionally();
pointer const a = traits::allocate(_M_allocator, __n, __hint);
insert(a, sizeof(value_type) * __n);
return a;
}
#if __cplusplus >= 201103L
template<typename _Up, typename... _Args>
void
construct(_Up* __p, _Args&&... __args)
{
traits::construct(_M_allocator, __p, std::forward<_Args>(__args)...);
insert_construct(__p);
}
template<typename _Up>
void
destroy(_Up* __p)
{
erase_construct(__p);
traits::destroy(_M_allocator, __p);
}
#else
void
construct(pointer __p, const value_type& __val)
{ return _M_allocator.construct(__p, __val); }
void
destroy(pointer __p)
{ _M_allocator.destroy(__p); }
#endif
void
deallocate(pointer __p, size_type __n)
{
erase(__p, sizeof(value_type) * __n);
_M_allocator.deallocate(__p, __n);
}
void
check_allocated(pointer __p, size_type __n)
{
size_type __t = sizeof(value_type) * __n;
annotate_base::check_allocated(__p, __t);
}
void
check(size_type __n)
{ annotate_base::check(__n); }
};
template<typename _Tp, typename _Cond>
inline bool
operator==(const throw_allocator_base<_Tp, _Cond>&,
const throw_allocator_base<_Tp, _Cond>&)
{ return true; }
#if __cpp_impl_three_way_comparison < 201907L
template<typename _Tp, typename _Cond>
inline bool
operator!=(const throw_allocator_base<_Tp, _Cond>&,
const throw_allocator_base<_Tp, _Cond>&)
{ return false; }
#endif
/// Allocator throwing via limit condition.
template<typename _Tp>
struct throw_allocator_limit
: public throw_allocator_base<_Tp, limit_condition>
{
template<typename _Tp1>
struct rebind
{ typedef throw_allocator_limit<_Tp1> other; };
throw_allocator_limit() _GLIBCXX_USE_NOEXCEPT { }
throw_allocator_limit(const throw_allocator_limit&)
_GLIBCXX_USE_NOEXCEPT { }
template<typename _Tp1>
throw_allocator_limit(const throw_allocator_limit<_Tp1>&)
_GLIBCXX_USE_NOEXCEPT { }
~throw_allocator_limit() _GLIBCXX_USE_NOEXCEPT { }
#if __cplusplus >= 201103L
throw_allocator_limit&
operator=(const throw_allocator_limit&) = default;
#endif
};
/// Allocator throwing via random condition.
template<typename _Tp>
struct throw_allocator_random
: public throw_allocator_base<_Tp, random_condition>
{
template<typename _Tp1>
struct rebind
{ typedef throw_allocator_random<_Tp1> other; };
throw_allocator_random() _GLIBCXX_USE_NOEXCEPT { }
throw_allocator_random(const throw_allocator_random&)
_GLIBCXX_USE_NOEXCEPT { }
template<typename _Tp1>
throw_allocator_random(const throw_allocator_random<_Tp1>&)
_GLIBCXX_USE_NOEXCEPT { }
~throw_allocator_random() _GLIBCXX_USE_NOEXCEPT { }
#if __cplusplus >= 201103L
throw_allocator_random&
operator=(const throw_allocator_random&) = default;
#endif
};
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
#if __cplusplus >= 201103L
# include <bits/functional_hash.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
/// Explicit specialization of std::hash for __gnu_cxx::throw_value_limit.
template<>
struct hash<__gnu_cxx::throw_value_limit>
: public std::unary_function<__gnu_cxx::throw_value_limit, size_t>
{
size_t
operator()(const __gnu_cxx::throw_value_limit& __val) const
{
__gnu_cxx::throw_value_limit::throw_conditionally();
std::hash<std::size_t> __h;
size_t __result = __h(__val._M_i);
return __result;
}
};
/// Explicit specialization of std::hash for __gnu_cxx::throw_value_random.
template<>
struct hash<__gnu_cxx::throw_value_random>
: public std::unary_function<__gnu_cxx::throw_value_random, size_t>
{
size_t
operator()(const __gnu_cxx::throw_value_random& __val) const
{
__gnu_cxx::throw_value_random::throw_conditionally();
std::hash<std::size_t> __h;
size_t __result = __h(__val._M_i);
return __result;
}
};
#pragma GCC diagnostic pop
} // end namespace std
#endif
#endif
map
ostream
stdexcept
string
utility
cstdio
ctime
move.h
functional_hash.h
requires_hosted.h
new_throw.h
stdexcept_throw.h
std::pow
complex< _Tp > pow(const complex< _Tp > &, int)
Return x to the y'th power.
Definition complex:1357
std::ostream
basic_ostream< char > ostream
Base class for char output streams.
Definition iosfwd:145
std::true_type
__bool_constant< true > true_type
The type used as a compile-time boolean with true value.
Definition type_traits:119
std::make_pair
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
Definition stl_pair.h:1166
std::__addressof
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
Definition move.h:52
std::forward
constexpr _Tp && forward(typename std::remove_reference< _Tp >::type &__t) noexcept
Forward an lvalue.
Definition move.h:72
std::string
basic_string< char > string
A string of char.
Definition stringfwd.h:79
std::bind
constexpr _Bind_helper< __is_socketlike< _Func >::value, _Func, _BoundArgs... >::type bind(_Func &&__f, _BoundArgs &&... __args)
Function template for std::bind.
Definition functional:976
std::mt19937
mersenne_twister_engine< uint_fast32_t, 32, 624, 397, 31, 0x9908b0dfUL, 11, 0xffffffffUL, 7, 0x9d2c5680UL, 15, 0xefc60000UL, 18, 1812433253UL > mt19937
Definition random.h:2311
std
ISO C++ entities toplevel namespace is std.
__gnu_cxx
GNU extensions for public use.
std::numeric_limits::max
static constexpr _Tp max() noexcept
Definition limits:328
std::hash
Primary class template hash.
Definition functional_hash.h:106
std::allocator
The standard allocator, as per C++03 [20.4.1].
Definition allocator.h:134
std::basic_string::c_str
constexpr const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
Definition basic_string.h:2897
std::basic_string::empty
constexpr bool empty() const noexcept
Definition basic_string.h:1355
std::exception
Base class for all library exceptions.
Definition exception.h:62
std::unary_function
Definition stl_function.h:121
std::pair
Struct holding two objects of arbitrary type.
Definition stl_pair.h:304
std::pair::first
_T1 first
The first member.
Definition stl_pair.h:308
std::pair::second
_T2 second
The second member.
Definition stl_pair.h:309
std::map
A standard container made up of (key,value) pairs, which can be retrieved based on a key,...
Definition stl_map.h:107
std::map::end
iterator end() noexcept
Definition stl_map.h:410
std::map::begin
iterator begin() noexcept
Definition stl_map.h:392
__gnu_cxx::__alloc_traits
Uniform interface to C++98 and C++11 allocators.
Definition ext/alloc_traits.h:51
__gnu_cxx::__alloc_traits< std::allocator< value_type > >::allocate
static constexpr pointer allocate(std::allocator< value_type > &__a, size_type __n)
__gnu_cxx::__alloc_traits< std::allocator< value_type > >::max_size
static constexpr size_type max_size(const std::allocator< value_type > &__a) noexcept
__gnu_cxx::forced_error
Thrown by utilities for testing exception safety.
Definition throw_allocator.h:83
__gnu_cxx::annotate_base
Base class for checking address and label information about allocations. Create a std::map between th...
Definition throw_allocator.h:97
__gnu_cxx::limit_condition
Base class for incremental control and throw.
Definition throw_allocator.h:432
__gnu_cxx::throw_value_base
Class with exception generation control. Intended to be used as a value_type in templatized code.
Definition throw_allocator.h:625
__gnu_cxx::throw_value_limit
Type throwing via limit condition.
Definition throw_allocator.h:742
__gnu_cxx::throw_value_random
Type throwing via random condition.
Definition throw_allocator.h:773
__gnu_cxx::throw_allocator_base
Allocator class with logging and exception generation control. Intended to be used as an allocator_ty...
Definition throw_allocator.h:812
alloc_traits.h
cmath
functional