Difference between revisions of "cpp/atomic/atomic fetch and"
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| − | 1-2) Atomically replaces the value pointed by {{tt|arg}} with the result of bitwise AND between the old value of {{tt|obj}} and {{tt|arg}}, and returns the value {{tt|obj}} held previously, as if by {{cpp|obj->fetch_and( | + | 1-2) Atomically replaces the value pointed by {{tt|arg}} with the result of bitwise AND between the old value of {{tt|obj}} and {{tt|arg}}, and returns the value {{tt|obj}} held previously, as if by {{cpp|obj->fetch_and(arg)}} |
| − | 3-4) Atomically replaces the value pointed by {{tt|arg}} with the result of bitwise AND between the old value of {{tt|obj}} and {{tt|arg}}, and returns the value {{tt|obj}} held previously, as if by {{cpp|obj->fetch_and( | + | 3-4) Atomically replaces the value pointed by {{tt|arg}} with the result of bitwise AND between the old value of {{tt|obj}} and {{tt|arg}}, and returns the value {{tt|obj}} held previously, as if by {{cpp|obj->fetch_and(arg, order)}} |
===Parameters=== | ===Parameters=== | ||
Revision as of 12:58, 5 January 2012
Template:cpp/atomic/sidebar Template:ddcl list begin <tr class="t-dsc-header">
<td><atomic>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td >Integral atomic_fetch_and( std::atomic<Integral>* obj, Integral arg );
<td > (1) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >Integral atomic_fetch_and( volatile std::atomic<Integral>* obj, Integral arg );
<td > (2) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >Integral atomic_fetch_and_explicit( std::atomic<Integral>* obj, Integral arg, std::memory_order order);
<td > (3) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >Integral atomic_fetch_and_explicit( volatile std::atomic<Integral>* obj, Integral arg, std::memory_order order);
<td > (4) </td> <td > (since C++11) </td> </tr> Template:ddcl list end
1-2) Atomically replaces the value pointed by arg with the result of bitwise AND between the old value of obj and arg, and returns the value obj held previously, as if by Template:cpp
3-4) Atomically replaces the value pointed by arg with the result of bitwise AND between the old value of obj and arg, and returns the value obj held previously, as if by Template:cpp
Contents |
Parameters
| obj | - | pointer to the atomic object to modify |
| arg | - | the value to bitwise AND to the value stored in the atomic object |
| order | - | the memory sycnhronization ordering for this operation: all values are permitted. |
Return value
The value held previously by the atomic object pointed to by obj
