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