C，使用全名将枚举分配给变量

Question

I'm trying to assign an enum value to an enum variable with its "Full" name in c. Is this possible?:

 enum EnumActions{
     SHIFT,
     REDUCE,
     ACCEPT,
     GOTO ,
     ERROR_A 
    };

int main(){
    enum EnumActions __actionType;
    __actionType = EnumActions::SHIFT; //this is giving an error
    __actionType = SHIFT;//this works fine
}

any ideas how I can get the first one working?

Answer 1

The answer is NO, in C it's not possible.

You could do it with a C++11 enum class or with C++ namespace 's:

If you want to make it easier to understand you can use a prefix:

enum EnumActions{
    ACTION_SHIFT,
    ACTION_REDUCE,
    ACTION_ACCEPT,
    ACTION_GOTO ,
    ACTION_ERROR_A 
};

//...

__actionType = ACTION_SHIFT;