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

No but in C++0x you can http://en.wikipedia.org/wiki/C%2B%2B0x#Lambda_functions_and_expressions which may take another few years to fully support. The standard is not complete at the time of this writing.

-edit-

Yes

If you can use MSVC 2010. I ran the code below with success

void test()
{
 []() { cout << "Hello function\n"; }();
 auto fn = [](int x) -> int { cout << "Hello function (" << x << " :))\n"; return x+1; };
 auto v = fn(2);
 fn(v);
}

output

Hello function
Hello function (2 :))
Hello function (3 :))

(I wrote >> c:\dev\loc\uniqueName.txt in the project working arguments section and copy pasted this result)