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    libstdc++
    
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Public Types | |
| typedef _Tp & | result_type | 
Public Member Functions | |
| template<typename _CVRef , typename _Tuple > | |
| result_type | operator() (_CVRef &__arg, _Tuple &) const volatile | 
If the argument is reference_wrapper<_Tp>, returns the underlying reference. [TR1 3.6.3/5 bullet 1]
Definition at line 1078 of file functional.