question

[Graziano Servizi]

Is there an "undefined behaviour" in the following short code?


//
# include <iostream>
# include <functional>

  int main(  )
  {
   int c = 90;
   double r = 70;
   auto v = [c] (double c)
    {std::cout << "homonymous dummy argument ... " << c << std::endl;};
   v(r);
  }


//

I ask this because the gnu-gcc compiler prints out the value of the 
"captured" int c = 90 variable, while clang prints the value of the 
double r = 70 transmitted argument instead...


Thanks for your attention.

G. Servizi