Visual C++ - anonymous methods

问题

Hi Is there any way to use anonymous methods in Visual C++ ??

回答1:

Visual C++ 2010 supports C++0x lambda expressions,⁽¹⁾ which can be used as anonymous functions:

int i = ([](int x) { return 40 + x; })(2); // i = 42

^{(1) It's more correct to say that Visual C++ 2010 supports one of the draft specifications for C++0x lambda expressions; several relatively minor changes have been made to that draft specification since Visual C++ 2010 was released.}

回答2:

As others have stated, C++0x will support lambdas. In the meantime, you can use Boost Lambda.

回答3:

If you can't use C++0x like everyone else has suggested there are a number of ways around what you're attempting to do which mimic to some degree but do not completely capture the anonymous aspect:

template<typename T>
void foo(const T& _someFunctor, double _someArgument){
    _someFunctor(_someArgument);
}

Or you could have a better defined structure as:

int bar(const boost::function<int(double,double)>& _aFunction, double arg1, double arg2){
    return _aFunction(arg1+2.0, arg2+2.0);
}

the Boost::Function approach is probably the most lient as it defines a very strict function interface while allowing use with:

1. Boost::Bind
2. functions
3. member functions
4. functors (function like objects)

回答4:

I assume you mean C++/CLI, anonymous methods is a C# term. No, not supported. It doesn't support the C++0x lambdas either.

回答5:

Yes, C++0x allows lambda functions.

来源：https://stackoverflow.com/questions/4855153/visual-c-anonymous-methods