Define a macro off of the content of a macro

Question

Is it possible to define a macro off of the content of a macro?

For example:

#define SET(key,value) #define key value

SET(myKey,"value")

int main(){
   char str[] = myKey;
   printf("%s",str);
}

would result in

int main(){
   char str[] = "value";
   printf("%s",str);
}

after being preprocessed.

Why would I do this? Because I'm curious ;)

Answer 1

No, its not possible to define a macro within another macro.