62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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// A default template-argument may be specified for any kind of
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// template-parameter that is not a template parameter pack.
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template<typename ...Types = int> // expected-error{{template parameter pack cannot have a default argument}}
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struct X0;
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template<int ...Values = 0> // expected-error{{template parameter pack cannot have a default argument}}
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struct X1;
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template<typename T> struct vector;
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template<template<class> class ...Templates = vector> // expected-error{{template parameter pack cannot have a default argument}}
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struct X2;
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struct X3 {
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template<typename T = int> // expected-error{{default template argument not permitted on a friend template}}
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friend void f0(X3);
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template<typename T = int>
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friend void f1(X3) {
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}
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};
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namespace PR8748 {
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// Testcase 1
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struct A0 { template<typename U> struct B; };
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template<typename U = int> struct A0::B { };
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// Testcase 2
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template<typename T> struct A1 { template<typename U> struct B; };
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template<typename T> template<typename U = int> struct A1<T>::B { }; // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
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// Testcase 3
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template<typename T>
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struct X2 {
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void f0();
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template<typename U> void f1();
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};
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template<typename T = int> void X2<T>::f0() { } // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
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template<typename T> template<typename U = int> void X2<T>::f1() { } // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
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namespace Inner {
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template<typename T> struct X3;
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template<typename T> void f2();
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}
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// Okay; not class members.
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template<typename T = int> struct Inner::X3 { };
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template<typename T = int> void Inner::f2() {}
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}
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namespace PR10069 {
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template<typename T, T a, T b=0, T c=1>
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T f(T x);
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void g() {
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f<unsigned int, 0>(0);
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}
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}
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