clang/test/CXX/expr/expr.prim/expr.prim.lambda/p13.cpp

   1 // RUN: %clang_cc1 -std=c++11 %s -Wunused -Wno-unused-lambda-capture -verify
   2
   3 void f2() {
   4   int i = 1;
   5   void g1(int = ([i]{ return i; })()); // expected-error{{lambda expression in default argument cannot capture any entity}}
   6   void g2(int = ([i]{ return 0; })()); // expected-error{{lambda expression in default argument cannot capture any entity}}
   7   void g3(int = ([=]{ return i; })()); // expected-error{{lambda expression in default argument cannot capture any entity}}
   8   void g4(int = ([=]{ return 0; })());
   9   void g5(int = ([]{ return sizeof i; })());
  10 }
  11
  12 namespace lambda_in_default_args {
  13   int f(int = [] () -> int { int n; return ++n; } ());
  14   template<typename T> T g(T = [] () -> T { T n; return ++n; } ());
  15   int k = f() + g<int>();
  16 }