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libstdc++
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This is one of the functor base classes.
| typedef _Arg std::unary_function::argument_type |
argument_type is the type of the argument
Definition at line 105 of file stl_function.h.
| typedef _Result std::unary_function::result_type |
result_type is the return type
Definition at line 108 of file stl_function.h.