xref: /aosp_15_r20/external/clang/test/CXX/temp/temp.param/p9.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify %s
2*67e74705SXin Li 
3*67e74705SXin Li // A default template-argument shall not be specified in a function
4*67e74705SXin Li // template declaration or a function template definition
5*67e74705SXin Li template<typename T = int> // expected-warning{{default template arguments for a function template are a C++11 extension}}
6*67e74705SXin Li   void foo0(T);
7*67e74705SXin Li template<typename T = int> // expected-warning{{default template arguments for a function template are a C++11 extension}}
foo1(T)8*67e74705SXin Li   void foo1(T) { }
9*67e74705SXin Li 
10*67e74705SXin Li // [...] nor in the template-parameter-list of the definition of a
11*67e74705SXin Li // member of a class template.
12*67e74705SXin Li template<int N>
13*67e74705SXin Li struct X0 {
14*67e74705SXin Li   void f();
15*67e74705SXin Li };
16*67e74705SXin Li 
17*67e74705SXin Li template<int N = 0> // expected-error{{cannot add a default template argument}}
f()18*67e74705SXin Li void X0<N>::f() { }
19*67e74705SXin Li 
20*67e74705SXin Li class X1 {
21*67e74705SXin Li   template<template<int> class TT = X0> // expected-error{{not permitted on a friend template}}
22*67e74705SXin Li   friend void f2();
23*67e74705SXin Li };
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