73c6a2448f
If a function declaration is found inside a template function as in:
template<class T> void f() {
void g(int x = T::v) except(T::w);
}
it must be instantiated along with the enclosing template function,
including default arguments and exception specification.
Together with the patch committed in r240974 this implements DR1484.
Differential Revision: http://reviews.llvm.org/D11194
llvm-svn: 245810
54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
|
|
|
|
void defargs() {
|
|
auto l1 = [](int i, int j = 17, int k = 18) { return i + j + k; };
|
|
int i1 = l1(1);
|
|
int i2 = l1(1, 2);
|
|
int i3 = l1(1, 2, 3);
|
|
}
|
|
|
|
|
|
void defargs_errors() {
|
|
auto l1 = [](int i,
|
|
int j = 17,
|
|
int k) { }; // expected-error{{missing default argument on parameter 'k'}}
|
|
|
|
auto l2 = [](int i, int j = i) {}; // expected-error{{default argument references parameter 'i'}}
|
|
|
|
int foo;
|
|
auto l3 = [](int i = foo) {}; // expected-error{{default argument references local variable 'foo' of enclosing function}}
|
|
}
|
|
|
|
struct NonPOD {
|
|
NonPOD();
|
|
NonPOD(const NonPOD&);
|
|
~NonPOD();
|
|
};
|
|
|
|
struct NoDefaultCtor {
|
|
NoDefaultCtor(const NoDefaultCtor&); // expected-note{{candidate constructor}} \
|
|
// expected-note{{candidate constructor not viable: requires 1 argument, but 0 were provided}}
|
|
~NoDefaultCtor();
|
|
};
|
|
|
|
template<typename T>
|
|
void defargs_in_template_unused(T t) {
|
|
auto l1 = [](const T& value = T()) { }; // expected-error{{no matching constructor for initialization of 'NoDefaultCtor'}}
|
|
l1(t);
|
|
}
|
|
|
|
template void defargs_in_template_unused(NonPOD);
|
|
template void defargs_in_template_unused(NoDefaultCtor); // expected-note{{in instantiation of function template specialization 'defargs_in_template_unused<NoDefaultCtor>' requested here}}
|
|
|
|
template<typename T>
|
|
void defargs_in_template_used() {
|
|
auto l1 = [](const T& value = T()) { }; // expected-error{{no matching constructor for initialization of 'NoDefaultCtor'}} \
|
|
// expected-note{{candidate function not viable: requires single argument 'value', but no arguments were provided}} \
|
|
// expected-note{{conversion candidate of type 'void (*)(const NoDefaultCtor &)'}}
|
|
l1(); // expected-error{{no matching function for call to object of type '(lambda at }}
|
|
}
|
|
|
|
template void defargs_in_template_used<NonPOD>();
|
|
template void defargs_in_template_used<NoDefaultCtor>(); // expected-note{{in instantiation of function template specialization}}
|
|
|