Intel(R) Threading Building Blocks Doxygen Documentation  version 4.2.3
tbb::internal::atomic_impl< T > Struct Template Reference

Base class that provides basic functionality for atomic<T> without fetch_and_add. More...

#include <atomic.h>

Inheritance diagram for tbb::internal::atomic_impl< T >:
Collaboration diagram for tbb::internal::atomic_impl< T >:

Classes

union  converter
 Union type used to convert type T to underlying integral type. More...
 
union  ptr_converter
 
union  ptr_converter< value_t * >
 

Public Types

typedef T value_type
 

Public Member Functions

 atomic_impl ()=default
 
constexpr atomic_impl (value_type value)
 
template<memory_semantics M>
value_type fetch_and_store (value_type value)
 
value_type fetch_and_store (value_type value)
 
template<memory_semantics M>
value_type compare_and_swap (value_type value, value_type comparand)
 
value_type compare_and_swap (value_type value, value_type comparand)
 
 operator value_type () const volatile
 
template<memory_semantics M>
value_type load () const
 
value_type load () const
 
template<memory_semantics M>
void store (value_type value)
 
void store (value_type value)
 

Protected Member Functions

value_type store_with_release (value_type rhs)
 

Protected Attributes

aligned_storage< T, sizeof(T)> my_storage
 

Static Private Member Functions

template<typename value_t >
static converter< value_t >::bits_type to_bits (value_t value)
 
template<typename value_t >
static value_t to_value (typename converter< value_t >::bits_type bits)
 
template<typename value_t >
static converter< value_t >::bits_type & to_bits_ref (value_t &value)
 

Detailed Description

template<typename T>
struct tbb::internal::atomic_impl< T >

Base class that provides basic functionality for atomic<T> without fetch_and_add.

Works for any type T that has the same size as an integral type, has a trivial constructor/destructor, and can be copied/compared by memcpy/memcmp.

Definition at line 220 of file atomic.h.

Member Typedef Documentation

◆ value_type

template<typename T>
typedef T tbb::internal::atomic_impl< T >::value_type

Definition at line 271 of file atomic.h.

Constructor & Destructor Documentation

◆ atomic_impl() [1/2]

template<typename T>
tbb::internal::atomic_impl< T >::atomic_impl ( )
default

◆ atomic_impl() [2/2]

template<typename T>
constexpr tbb::internal::atomic_impl< T >::atomic_impl ( value_type  value)
inline

Definition at line 275 of file atomic.h.

275 :my_storage(value){}
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222

Member Function Documentation

◆ compare_and_swap() [1/2]

template<typename T>
template<memory_semantics M>
value_type tbb::internal::atomic_impl< T >::compare_and_swap ( value_type  value,
value_type  comparand 
)
inline

Definition at line 289 of file atomic.h.

289  {
290  return to_value<value_type>(
291  internal::atomic_traits<sizeof(value_type),M>::compare_and_swap( &my_storage.my_value, to_bits(value), to_bits(comparand) )
292  );
293  }
static converter< value_t >::bits_type to_bits(value_t value)
Definition: atomic.h:236
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222
value_type compare_and_swap(value_type value, value_type comparand)
Definition: atomic.h:289

Referenced by tbb::queuing_rw_mutex::scoped_lock::acquire(), tbb::interface5::internal::concurrent_unordered_base< concurrent_unordered_map_traits< Key, T, internal::hash_compare< Key, Hasher, Key_equality >, Allocator, false > >::adjust_table_size(), tbb::internal::arena::advertise_new_work(), tbb::internal::concurrent_vector_base_v3::helper::assign_first_segment_if_necessary(), tbb::internal::atomic_do_once(), tbb::internal::atomic_update(), tbb::internal::atomic_impl< tbb::interface9::global_control * >::compare_and_swap(), tbb::interface5::fetch_and_and(), tbb::interface5::fetch_and_or(), tbb::internal::concurrent_vector_base_v3::internal_grow_to_at_least_with_result(), tbb::internal::concurrent_queue_base_v3::internal_insert_if_not_full(), tbb::internal::concurrent_queue_base_v3::internal_pop_if_present(), tbb::strict_ppl::internal::concurrent_queue_base_v3< Value >::internal_try_pop(), tbb::internal::arena::is_out_of_work(), tbb::interface5::reader_writer_lock::set_next_writer(), tbb::internal::rml::private_worker::start_shutdown(), tbb::internal::rml::private_worker::wake_or_launch(), and tbb::internal::rml::private_server::wake_some().

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◆ compare_and_swap() [2/2]

template<typename T>
value_type tbb::internal::atomic_impl< T >::compare_and_swap ( value_type  value,
value_type  comparand 
)
inline

Definition at line 295 of file atomic.h.

295  {
296  return compare_and_swap<full_fence>(value,comparand);
297  }
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value

◆ fetch_and_store() [1/2]

template<typename T>
template<memory_semantics M>
value_type tbb::internal::atomic_impl< T >::fetch_and_store ( value_type  value)
inline

Definition at line 278 of file atomic.h.

278  {
279  return to_value<value_type>(
280  internal::atomic_traits<sizeof(value_type),M>::fetch_and_store( &my_storage.my_value, to_bits(value) )
281  );
282  }
static converter< value_t >::bits_type to_bits(value_t value)
Definition: atomic.h:236
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222
value_type fetch_and_store(value_type value)
Definition: atomic.h:278

Referenced by tbb::internal::atomic_impl< tbb::interface9::global_control * >::fetch_and_store(), tbb::interface9::internal::flag_task::mark_task_stolen(), tbb::interface6::internal::aggregator_generic< aggregated_operation_type >::start_handle_operations(), and tbb::interface6::aggregator_ext< internal::basic_handler >::start_handle_operations().

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◆ fetch_and_store() [2/2]

template<typename T>
value_type tbb::internal::atomic_impl< T >::fetch_and_store ( value_type  value)
inline

Definition at line 284 of file atomic.h.

284  {
285  return fetch_and_store<full_fence>(value);
286  }
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value

◆ load() [1/2]

◆ load() [2/2]

template<typename T>
value_type tbb::internal::atomic_impl< T >::load ( ) const
inline

Definition at line 312 of file atomic.h.

312  {
313  return load<acquire>();
314  }

◆ operator value_type()

template<typename T>
tbb::internal::atomic_impl< T >::operator value_type ( ) const volatile
inline

Definition at line 299 of file atomic.h.

299  { // volatile qualifier here for backwards compatibility
300  return to_value<value_type>(
302  );
303  }
T __TBB_load_with_acquire(const volatile T &location)
Definition: tbb_machine.h:713
static converter< value_t >::bits_type & to_bits_ref(value_t &value)
Definition: atomic.h:259
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222

◆ store() [1/2]

template<typename T>
template<memory_semantics M>
void tbb::internal::atomic_impl< T >::store ( value_type  value)
inline

Definition at line 317 of file atomic.h.

317  {
319  }
static converter< value_t >::bits_type to_bits(value_t value)
Definition: atomic.h:236
void store(atomic< T > &a, T value)
Definition: atomic.h:524
static converter< value_t >::bits_type & to_bits_ref(value_t &value)
Definition: atomic.h:259
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222

Referenced by internal::async_storage< T >::async_storage(), tbb::internal::concurrent_vector_base_v3::concurrent_vector_base_v3(), tbb::internal::concurrent_vector_base_v3::internal_swap(), tbb::interface6::task_scheduler_observer::observe(), tbb::internal::concurrent_vector_base_v3::segment_t::operator=(), tbb::flow::interface10::opencl_memory< Factory >::receive(), tbb::internal::concurrent_vector_base_v3::segment_t::segment_t(), tbb::flow::interface10::opencl_memory< Factory >::send(), internal::async_storage< T >::set(), tbb::internal::concurrent_vector_base_v3::segment_t::store(), and tbb::internal::task_scheduler_observer_v3::task_scheduler_observer_v3().

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◆ store() [2/2]

template<typename T>
void tbb::internal::atomic_impl< T >::store ( value_type  value)
inline

Definition at line 321 of file atomic.h.

321  {
322  store<release>( value );
323  }
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value

◆ store_with_release()

template<typename T>
value_type tbb::internal::atomic_impl< T >::store_with_release ( value_type  rhs)
inlineprotected

Definition at line 326 of file atomic.h.

326  {
327  //TODO: unify with store<release>
329  return rhs;
330  }
static converter< value_t >::bits_type to_bits(value_t value)
Definition: atomic.h:236
static converter< value_t >::bits_type & to_bits_ref(value_t &value)
Definition: atomic.h:259
aligned_storage< T, sizeof(T)> my_storage
Definition: atomic.h:222
void __TBB_store_with_release(volatile T &location, V value)
Definition: tbb_machine.h:717

Referenced by tbb::atomic< tbb::interface9::global_control * >::operator=().

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◆ to_bits()

template<typename T>
template<typename value_t >
static converter<value_t>::bits_type tbb::internal::atomic_impl< T >::to_bits ( value_t  value)
inlinestaticprivate

Definition at line 236 of file atomic.h.

236  {
237  return converter<value_t>(value).bits;
238  }
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value

Referenced by tbb::internal::atomic_impl< tbb::interface9::global_control * >::compare_and_swap(), tbb::internal::atomic_impl< tbb::interface9::global_control * >::fetch_and_store(), tbb::internal::atomic_impl< tbb::interface9::global_control * >::store(), and tbb::internal::atomic_impl< tbb::interface9::global_control * >::store_with_release().

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◆ to_bits_ref()

template<typename T>
template<typename value_t >
static converter<value_t>::bits_type& tbb::internal::atomic_impl< T >::to_bits_ref ( value_t &  value)
inlinestaticprivate

Definition at line 259 of file atomic.h.

259  {
260  //TODO: this #ifdef is temporary workaround, as union conversion seems to fail
261  //on suncc for 64 bit types for 32 bit target
262  #if !__SUNPRO_CC
263  return *(typename converter<value_t>::bits_type*)ptr_converter<value_t*>(&value).bits;
264  #else
265  return *(typename converter<value_t>::bits_type*)(&value);
266  #endif
267  }
atomic_rep< sizeof(value_type)>::word bits_type
Definition: atomic.h:228
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value

Referenced by tbb::internal::atomic_impl< tbb::interface9::global_control * >::load(), tbb::internal::atomic_impl< tbb::interface9::global_control * >::operator value_type(), tbb::internal::atomic_impl< tbb::interface9::global_control * >::store(), and tbb::internal::atomic_impl< tbb::interface9::global_control * >::store_with_release().

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◆ to_value()

template<typename T>
template<typename value_t >
static value_t tbb::internal::atomic_impl< T >::to_value ( typename converter< value_t >::bits_type  bits)
inlinestaticprivate

Definition at line 240 of file atomic.h.

240  {
241  converter<value_t> u;
242  u.bits = bits;
243  return u.value;
244  }

Member Data Documentation

◆ my_storage


The documentation for this struct was generated from the following file:

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