7dbab5dc84
This corresponds to the fixes done for std::any_cast, but has to be done without if-constexpr. The dummy specialization of _Manager_internal<_Op> is used to avoid instantiating the real _Manager_internal<T>::_S_manage function just to compare its address. PR libstdc++/90220 * include/experimental/any (__any_caster): Constrain to only be callable for object types. Use remove_cv_t instead of decay_t. If the type decays or isn't copy constructible, compare the manager function to a dummy specialization. (__any_caster): Add overload constrained for non-object types. (any::_Manager_internal<_Op>): Add dummy specialization. * testsuite/experimental/any/misc/any_cast.cc: Test function types and array types. From-SVN: r271556 |
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| assign | ||
| cons | ||
| misc | ||
| modifiers | ||
| observers | ||
| typedefs.cc | ||