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e7f3e2103c
arguments of types by default. This somewhat improves the worst-case printing of types like std::string, std::vector, etc., where many irrelevant default arguments can be included in the type as printed if we've lost the type sugar.
35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++14-compat-pedantic -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++17 -Wc++14-compat-pedantic -verify %s
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#if __cplusplus < 201402L
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// expected-no-diagnostics
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// FIXME: C++11 features removed or changed in C++14?
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#else
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static_assert(true); // expected-warning {{incompatible with C++ standards before C++17}}
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template<int ...N> int f() { return (N + ...); } // expected-warning {{incompatible with C++ standards before C++17}}
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namespace [[]] NS_with_attr {} // expected-warning {{incompatible with C++ standards before C++17}}
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enum { e [[]] }; // expected-warning {{incompatible with C++ standards before C++17}}
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template<typename T = int> struct X {};
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X x; // expected-warning {{class template argument deduction is incompatible with C++ standards before C++17; for compatibility, use explicit type name 'X<>'}}
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template<template<typename> class> struct Y {};
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Y<X> yx; // ok, not class template argument deduction
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template<typename T> void f(T t) {
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X x = t; // expected-warning {{incompatible}}
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}
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template<typename T> void g(T t) {
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typename T::X x = t; // expected-warning {{incompatible}}
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}
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struct A { template<typename T> struct X { X(T); }; };
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void h(A a) { g(a); } // expected-note {{in instantiation of}}
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#endif
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