File: lookup-dependent-bases.cpp

package info (click to toggle)
llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 493,332 kB
  • sloc: cpp: 2,698,100; ansic: 552,773; asm: 128,821; python: 121,589; objc: 105,054; sh: 21,174; lisp: 6,758; ml: 5,532; perl: 5,311; pascal: 5,245; makefile: 2,083; cs: 1,868; xml: 686; php: 212; csh: 117
file content (55 lines) | stat: -rw-r--r-- 1,304 bytes parent folder | download | duplicates (47)
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
53
54
55
// RUN: %clang_cc1 -fms-compatibility -fsyntax-only -verify %s

namespace basic {
struct C {
  static void foo2() {}
};
template <typename T>
struct A {
  typedef C D;
};

template <typename T>
struct B : A<T> {
  void foo() {
    D::foo2(); // expected-warning {{use of undeclared identifier 'D'; unqualified lookup into dependent bases of class template 'B' is a Microsoft extension}}
  }
};

template struct B<int>; // Instantiation has no warnings.
}

namespace nested_nodep_base {
// There are limits to our hacks, MSVC accepts this, but we don't.
struct A {
  struct D { static void foo2(); };
};
template <typename T>
struct B : T {
  struct C {
    void foo() {
      D::foo2(); // expected-error {{use of undeclared identifier 'D'}}
    }
  };
};

template struct B<A>; // Instantiation has no warnings.
}

namespace nested_dep_base {
// We actually accept this because the inner class has a dependent base even
// though it isn't a template.
struct A {
  struct D { static void foo2(); };
};
template <typename T>
struct B {
  struct C : T {
    void foo() {
      D::foo2(); // expected-warning {{use of undeclared identifier 'D'; unqualified lookup into dependent bases of class template 'C' is a Microsoft extension}}
    }
  };
};

template struct B<A>; // Instantiation has no warnings.
}