40 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wc++98-compat-pedantic -verify %s2// RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wc++98-compat-pedantic -Wno-bind-to-temporary-copy -Wno-unnamed-type-template-args -Wno-local-type-template-args -Wno-binary-literal -Werror %s3 4template<typename T> int TemplateFn(T) { return 0; }5void LocalTemplateArg() {6 struct S {};7 TemplateFn(S()); // expected-warning {{local type 'S' as template argument is incompatible with C++98}}8 // expected-note@-1 {{while substituting deduced template arguments}}9}10struct {} obj_of_unnamed_type; // expected-note {{here}}11int UnnamedTemplateArg = TemplateFn(obj_of_unnamed_type); // expected-warning {{unnamed type as template argument is incompatible with C++98}}12 // expected-note@-1 {{while substituting deduced template arguments}}13 14namespace CopyCtorIssues {15 struct Private {16 Private();17 private:18 Private(const Private&); // expected-note {{declared private here}}19 };20 struct NoViable {21 NoViable(); // expected-note {{not viable}}22 NoViable(NoViable&); // expected-note {{not viable}}23 };24 struct Ambiguous {25 Ambiguous();26 Ambiguous(const Ambiguous &, int = 0); // expected-note {{candidate}}27 Ambiguous(const Ambiguous &, double = 0); // expected-note {{candidate}}28 };29 struct Deleted {30 Private p; // expected-note {{copy constructor of 'Deleted' is implicitly deleted because field 'p' has an inaccessible copy constructor}}31 };32 33 const Private &a = Private(); // expected-warning {{copying variable of type 'Private' when binding a reference to a temporary would invoke an inaccessible constructor in C++98}}34 const NoViable &b = NoViable(); // expected-warning {{copying variable of type 'NoViable' when binding a reference to a temporary would find no viable constructor in C++98}}35 const Ambiguous &c = Ambiguous(); // expected-warning {{copying variable of type 'Ambiguous' when binding a reference to a temporary would find ambiguous constructors in C++98}}36 const Deleted &d = Deleted(); // expected-warning {{copying variable of type 'Deleted' when binding a reference to a temporary would invoke a deleted constructor in C++98}}37 38 int n = 0b00100101001; // expected-warning {{binary integer literals are incompatible with C++ standards before C++14}}39}40