is it possible in C or C++ to create a function inside another?

Question

Could someone please tell me if this is possible in C or C++?

void fun_a();
//int fun_b();
...
main(){
   ...
   fun_a();
   ...
   int fun_b(){
     ...
            


        

Answer 1

Clang/Apple are working on 'blocks', anonymous functions in C! :-D

^ ( void ) { printf("hello world\n"); }

info here and spec here, and ars technica has a bit on it