File: tuple_size.verify.cpp

package info (click to toggle)
llvm-toolchain-snapshot 1%3A22~%2B%2B20251023025710%2B3f47a7be1ae6-1~exp5
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,336,076 kB
  • sloc: cpp: 7,822,956; ansic: 1,531,523; asm: 1,088,291; python: 260,779; f90: 98,765; objc: 70,846; lisp: 47,149; pascal: 17,852; sh: 8,636; ml: 5,111; perl: 4,720; makefile: 3,680; awk: 3,523; javascript: 2,270; xml: 892; fortran: 793
file content (25 lines) | stat: -rw-r--r-- 988 bytes parent folder | download | duplicates (15) 
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
 
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03

// <tuple>

// template <class... Types>
//   class tuple_size<tuple<Types...>>
//     : public integral_constant<size_t, sizeof...(Types)> { };

// Expect failures with a reference type, pointer type, and a non-tuple type.

#include <tuple>

void f() {
    (void)std::tuple_size<std::tuple<> &>::value; // expected-error {{implicit instantiation of undefined template}}
    (void)std::tuple_size<int>::value; // expected-error {{implicit instantiation of undefined template}}
    (void)std::tuple_size<std::tuple<>*>::value; // expected-error {{implicit instantiation of undefined template}}
}