File: using-template.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (52 lines) | stat: -rw-r--r-- 1,156 bytes parent folder | download | duplicates (25)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// RUN: %clang_cc1 %s -verify

namespace N1 {
template <typename... Ts>
struct Foo {
  template <typename T>
  struct Bar {
    static constexpr bool is_present = false;
  };
};

template <typename T, typename... Ts>
struct Foo<T, Ts...> : public Foo<Ts...> {
  using template Foo<Ts...>::Bar;
  // expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
};
}

namespace N2 {
namespace foo {
  using I = int;
}
using template namespace foo;
// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
using template template namespace foo;
// expected-error@-1 2{{'template' keyword not permitted after 'using' keyword}}
I i;
}

namespace N3 {
namespace foo {
  using I = int;
}
using template foo::I;
// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
I i;
}

namespace N4 {
template <typename T>
class A {};

template <typename T>
using B = A<T>;
B<int> b;

using template <typename T> C = A<T>;
// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
// expected-error@-2 {{expected unqualified-id}}
C<int> c;
// expected-error@-1 {{no template named 'C'}}
}