gcc/testsuite/g++.dg/cpp0x/lambda/lambda-nested.C

   1 // { dg-do "run" }
   2 // { dg-options "-std=c++0x" }
   3
   4 #include <cassert>
   5
   6 int main() {
   7   int i = 1;
   8
   9   [] (int& i) -> void {
  10     [&] () -> void {
  11       i = 2;
  12     } ();
  13   } (i);
  14
  15   assert(i == 2);
  16
  17   [&] () -> void {
  18     [&i] () -> void {
  19       i = 3;
  20     } ();
  21   } ();
  22
  23   assert(i == 3);
  24
  25   [&] () -> void {
  26     [&] () -> void {
  27       i = 4;
  28     } ();
  29   } ();
  30
  31   assert(i == 4);
  32   i = 4;
  33
  34   [&] () -> void {
  35     [=] () mutable -> void {
  36       i = 5;
  37     } ();
  38   } ();
  39
  40   assert(i == 4);
  41
  42   [=] () mutable -> void {
  43     [&] () -> void {
  44       i = 6;
  45     } ();
  46   } ();
  47
  48   assert(i == 4);
  49
  50   return 0;
  51 }
  52