std::atomic_flag_test_and_set, std::atomic_flag_test_and_set_explicit
From cppreference.com
Template:cpp/atomic/sidebar Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<atomic>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td >bool atomic_flag_test_and_set( volatile std::atomic_flag* p );
</td>
<td > (1) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >bool atomic_flag_test_and_set( std::atomic_flag* p );
</td>
<td > (2) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >bool atomic_flag_test_and_set_explicit( volatile std::atomic_flag* p,
std::memory_order order );
</td>
std::memory_order order );
<td > (3) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >bool atomic_flag_test_and_set_explicit( std::atomic_flag* p,
std::memory_order order );
</td>
std::memory_order order );
<td > (4) </td> <td > (since C++11) </td> </tr> Template:ddcl list end
Atomically changes the state of a Template:cpp pointed to by p to set (Template:cpp) and returns the value it held before.
Contents |
Parameters
| p | - | pointer to Template:cpp to access |
| order | - | the memory sycnhronization ordering for this operation |
Return value
The value previously held by the flag pointed to by p
Exceptions
noexcept specification:
noexcept
