42 lines · cpp
1// RUN: %clang_cc1 -verify %s2 3namespace default_args {4 template<typename T> struct char_traits;5 template<typename T> struct allocator;6 template<typename T, typename = char_traits<T>, typename = allocator<T>> struct basic_string {};7 8 typedef basic_string<char> string;9 10 template<typename T> T f(T);11 12 void test1() {13 string s;14 f(s).size(); // expected-error {{no member named 'size' in 'default_args::basic_string<char>'}}15 }16 17 template<typename T> struct default_delete {};18 template<class T, class Deleter = default_delete<T>> class unique_ptr {19 public:20 void f() { T::error(); } // expected-error {{no member named 'error' in 'default_args::basic_string<char>'}}21 };22 template<class T, class Deleter> class unique_ptr<T[], Deleter> {};23 void test2() {24 unique_ptr<string> ups;25 f(ups).reset(); // expected-error {{no member named 'reset' in 'default_args::unique_ptr<default_args::basic_string<char>>'}}26 f(ups).f(); // expected-note {{in instantiation of member function 'default_args::unique_ptr<default_args::basic_string<char>>::f' requested here}}27 }28 29 template<int A, int B = A, int C = 42> struct Z { int error[B]; }; // expected-error {{negative size}}30 Z<-1> z; // expected-note {{in instantiation of template class 'default_args::Z<-1>' requested here}}31 32 template<template<typename> class A = allocator, template<typename> class B = A> struct Q {};33 void test3() {34 f(Q<>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<>'}}35 f(Q<allocator>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<>'}}36 f(Q<allocator, allocator>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<>'}}37 f(Q<char_traits>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<default_args::char_traits>'}}38 f(Q<char_traits, char_traits>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<default_args::char_traits>'}}39 f(Q<char_traits, allocator>()).g(); // expected-error {{no member named 'g' in 'default_args::Q<default_args::char_traits, default_args::allocator>'}}40 }41}42