clang/test/SemaCXX/cxx2a-lambda-equals-this.cpp

   1 // RUN: %clang_cc1 -std=c++2a -verify %s -Wdeprecated
   2
   3 // This test does two things.
   4 // Deleting the copy constructor ensures that an [=, this] capture doesn't copy the object.
   5 // Accessing a member variable from the lambda ensures that the capture actually works.
   6 class A {
   7   A(const A &) = delete;
   8   int i;
   9
  10   void func() {
  11     auto L = [=, this]() -> int { return i; };
  12     L();
  13   }
  14 };
  15
  16 struct B {
  17   int i;
  18   void f() {
  19     (void) [=] { // expected-note {{add an explicit capture of 'this'}}
  20       return i; // expected-warning {{implicit capture of 'this' with a capture default of '=' is deprecated}}
  21     };
  22   }
  23 };