File: instantiate-subscript.cpp

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (41 lines) | stat: -rw-r--r-- 898 bytes parent folder | download | duplicates (13) 
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
 
// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++23 %s

struct Sub0 {
  int &operator[](int);
};

struct Sub1 {
  long &operator[](long); // expected-note{{candidate function}}
};

struct ConvertibleToInt {
  operator int();
};

template<typename T, typename U, typename Result>
struct Subscript0 {
  void test(T t, U u) {
    Result &result = t[u]; // expected-error{{no viable overloaded operator[] for type}}
  }
};

template struct Subscript0<int*, int, int&>;
template struct Subscript0<Sub0, int, int&>;
template struct Subscript0<Sub1, ConvertibleToInt, long&>;
template struct Subscript0<Sub1, Sub0, long&>; // expected-note{{instantiation}}

// PR5345
template <typename T>
struct S {
  bool operator[](int n) const { return true; }
};

template <typename T>
void Foo(const S<int>& s, T x) {
  if (s[0]) {}
}

void Bar() {
  Foo(S<int>(), 0);
}