Difference between revisions of "cpp/memory/shared ptr/pointer cast"
(Created page with "{{cpp/memory/shared_ptr/title | pointer_cast}} {{cpp/memory/shared_ptr/sidebar}} {{ddcl list begin}} {{ddcl list item | num=1 | notes={{mark since c++11}} | 1= template<class T,...") |
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Will return a new instance of {{cpp|std::shared_ptr}} with a casted managed object type from the {{tt|r}}'s managed objet type. Both smart pointers will share the ownership of the managed object. | Will return a new instance of {{cpp|std::shared_ptr}} with a casted managed object type from the {{tt|r}}'s managed objet type. Both smart pointers will share the ownership of the managed object. | ||
| − | The | + | The resulting {{cpp|std::shared_ptr}}'s managed object will be obtained by calling (in respective order): |
1) {{tt|static_cast<T*>(r.get())}}. | 1) {{tt|static_cast<T*>(r.get())}}. | ||
Revision as of 14:11, 8 March 2012
Template:cpp/memory/shared ptr/sidebar Template:ddcl list begin <tr class="t-dcl ">
<td ><td > (1) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td ><td > (2) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td ><td > (3) </td> <td > (since C++11) </td> </tr>
Template:ddcl list end
Will return a new instance of Template:cpp with a casted managed object type from the r's managed objet type. Both smart pointers will share the ownership of the managed object.
The resulting Template:cpp's managed object will be obtained by calling (in respective order):
1) static_cast<T*>(r.get()).
2) dynamic_cast<T*>(r.get()) (If the result of the dynamic_cast is 0, the returned shared_ptr will be empty).
3) const_cast<T*>(r.get()).
In all case, if the parameter r is an empty Template:cpp the result will be a new empty Template:cpp.
Parameters
| This section is incomplete |
