src/llvm/tools/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p6.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
   2
   3 void test_conversion() {
   4   int (*fp1)(int) = [](int x) { return x + 1; };
   5   void (*fp2)(int) = [](int x) { };
   6
   7   const auto lambda = [](int x) { };
   8   void (*fp3)(int) = lambda;
   9
  10   volatile const auto lambda2 = [](int x) { }; // expected-note{{but method is not marked volatile}}
  11   void (*fp4)(int) = lambda2; // expected-error{{no viable conversion}}
  12 }
  13
  14 void test_no_conversion() {
  15   int (*fp1)(int) = [=](int x) { return x + 1; }; // expected-error{{no viable conversion}}
  16   void (*fp2)(int) = [&](int x) { }; // expected-error{{no viable conversion}}
  17 }
  18
  19 void test_wonky() {
  20   const auto l = [](int x) mutable -> int { return + 1; };
  21   l(17); // okay: uses conversion function
  22 }