17974c60375b2b9dfc20defc77c9ed8c3d6d241a1Richard Smith// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify 2c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 3c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorvoid defargs() { 4c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l1 = [](int i, int j = 17, int k = 18) { return i + j + k; }; 5c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int i1 = l1(1); 6c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int i2 = l1(1, 2); 7c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int i3 = l1(1, 2, 3); 8c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor} 9c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 10c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 11c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorvoid defargs_errors() { 12c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l1 = [](int i, 13c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int j = 17, 14c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int k) { }; // expected-error{{missing default argument on parameter 'k'}} 15c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 16c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l2 = [](int i, int j = i) {}; // expected-error{{default argument references parameter 'i'}} 17c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 18c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor int foo; 19c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l3 = [](int i = foo) {}; // expected-error{{default argument references local variable 'foo' of enclosing function}} 20c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor} 21c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 22c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorstruct NonPOD { 23c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor NonPOD(); 24c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor NonPOD(const NonPOD&); 25c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor ~NonPOD(); 26c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor}; 27c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 28c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorstruct NoDefaultCtor { 29c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor NoDefaultCtor(const NoDefaultCtor&); // expected-note{{candidate constructor}} 30c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor ~NoDefaultCtor(); 31c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor}; 32c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 33c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate<typename T> 34c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorvoid defargs_in_template_unused(T t) { 35c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l1 = [](const T& value = T()) { }; 36c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor l1(t); 37c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor} 38c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 39c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate void defargs_in_template_unused(NonPOD); 40c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate void defargs_in_template_unused(NoDefaultCtor); 41c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 42c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate<typename T> 43c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregorvoid defargs_in_template_used() { 44c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor auto l1 = [](const T& value = T()) { }; // expected-error{{no matching constructor for initialization of 'NoDefaultCtor'}} 45c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor l1(); // expected-note{{in instantiation of default function argument expression for 'operator()<NoDefaultCtor>' required here}} 46c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor} 47c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 48c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate void defargs_in_template_used<NonPOD>(); 49c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregortemplate void defargs_in_template_used<NoDefaultCtor>(); // expected-note{{in instantiation of function template specialization}} 50c6889e7ed16604c51994e1f11becf213fdc64eb3Douglas Gregor 51