1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <bitset>
10 
11 // This test ensures that we don't use a non-uglified name 'base', 'iterator',
12 // 'const_iterator', and `const_reference` in the implementation of bitset.
13 //
14 // See https://github.com/llvm/llvm-project/issues/111125.
15 // See https://github.com/llvm/llvm-project/issues/121618.
16 
17 // XFAIL: FROZEN-CXX03-HEADERS-FIXME
18 
19 #include <cstddef>
20 #include <bitset>
21 #include <type_traits>
22 
23 struct my_base {
24   typedef int* iterator;
25   typedef const int* const_iterator;
26   typedef my_base base;
27   typedef const int& const_reference;
28   typedef std::ptrdiff_t difference_type;
29   typedef std::size_t size_type;
30 };
31 
32 template <std::size_t N>
33 struct my_derived : my_base, std::bitset<N> {};
34 
35 static_assert(std::is_same<my_derived<0>::iterator, int*>::value, "");
36 static_assert(std::is_same<my_derived<1>::iterator, int*>::value, "");
37 static_assert(std::is_same<my_derived<8>::iterator, int*>::value, "");
38 static_assert(std::is_same<my_derived<12>::iterator, int*>::value, "");
39 static_assert(std::is_same<my_derived<16>::iterator, int*>::value, "");
40 static_assert(std::is_same<my_derived<32>::iterator, int*>::value, "");
41 static_assert(std::is_same<my_derived<48>::iterator, int*>::value, "");
42 static_assert(std::is_same<my_derived<64>::iterator, int*>::value, "");
43 static_assert(std::is_same<my_derived<96>::iterator, int*>::value, "");
44 
45 static_assert(std::is_same<my_derived<0>::const_iterator, const int*>::value, "");
46 static_assert(std::is_same<my_derived<1>::const_iterator, const int*>::value, "");
47 static_assert(std::is_same<my_derived<8>::const_iterator, const int*>::value, "");
48 static_assert(std::is_same<my_derived<12>::const_iterator, const int*>::value, "");
49 static_assert(std::is_same<my_derived<16>::const_iterator, const int*>::value, "");
50 static_assert(std::is_same<my_derived<32>::const_iterator, const int*>::value, "");
51 static_assert(std::is_same<my_derived<48>::const_iterator, const int*>::value, "");
52 static_assert(std::is_same<my_derived<64>::const_iterator, const int*>::value, "");
53 static_assert(std::is_same<my_derived<96>::const_iterator, const int*>::value, "");
54 
55 static_assert(std::is_same<my_derived<0>::base, my_base>::value, "");
56 static_assert(std::is_same<my_derived<1>::base, my_base>::value, "");
57 static_assert(std::is_same<my_derived<8>::base, my_base>::value, "");
58 static_assert(std::is_same<my_derived<12>::base, my_base>::value, "");
59 static_assert(std::is_same<my_derived<16>::base, my_base>::value, "");
60 static_assert(std::is_same<my_derived<32>::base, my_base>::value, "");
61 static_assert(std::is_same<my_derived<48>::base, my_base>::value, "");
62 static_assert(std::is_same<my_derived<64>::base, my_base>::value, "");
63 static_assert(std::is_same<my_derived<96>::base, my_base>::value, "");
64 
65 static_assert(std::is_same<my_derived<0>::const_reference, const int&>::value, "");
66 static_assert(std::is_same<my_derived<1>::const_reference, const int&>::value, "");
67 static_assert(std::is_same<my_derived<8>::const_reference, const int&>::value, "");
68 static_assert(std::is_same<my_derived<12>::const_reference, const int&>::value, "");
69 static_assert(std::is_same<my_derived<16>::const_reference, const int&>::value, "");
70 static_assert(std::is_same<my_derived<32>::const_reference, const int&>::value, "");
71 static_assert(std::is_same<my_derived<48>::const_reference, const int&>::value, "");
72 static_assert(std::is_same<my_derived<64>::const_reference, const int&>::value, "");
73 static_assert(std::is_same<my_derived<96>::const_reference, const int&>::value, "");
74 
75 static_assert(std::is_same<my_derived<0>::difference_type, std::ptrdiff_t>::value, "");
76 static_assert(std::is_same<my_derived<1>::difference_type, std::ptrdiff_t>::value, "");
77 static_assert(std::is_same<my_derived<8>::difference_type, std::ptrdiff_t>::value, "");
78 static_assert(std::is_same<my_derived<12>::difference_type, std::ptrdiff_t>::value, "");
79 static_assert(std::is_same<my_derived<16>::difference_type, std::ptrdiff_t>::value, "");
80 static_assert(std::is_same<my_derived<32>::difference_type, std::ptrdiff_t>::value, "");
81 static_assert(std::is_same<my_derived<48>::difference_type, std::ptrdiff_t>::value, "");
82 static_assert(std::is_same<my_derived<64>::difference_type, std::ptrdiff_t>::value, "");
83 static_assert(std::is_same<my_derived<96>::difference_type, std::ptrdiff_t>::value, "");
84 
85 static_assert(std::is_same<my_derived<0>::size_type, std::size_t>::value, "");
86 static_assert(std::is_same<my_derived<1>::size_type, std::size_t>::value, "");
87 static_assert(std::is_same<my_derived<8>::size_type, std::size_t>::value, "");
88 static_assert(std::is_same<my_derived<12>::size_type, std::size_t>::value, "");
89 static_assert(std::is_same<my_derived<16>::size_type, std::size_t>::value, "");
90 static_assert(std::is_same<my_derived<32>::size_type, std::size_t>::value, "");
91 static_assert(std::is_same<my_derived<48>::size_type, std::size_t>::value, "");
92 static_assert(std::is_same<my_derived<64>::size_type, std::size_t>::value, "");
93 static_assert(std::is_same<my_derived<96>::size_type, std::size_t>::value, "");
94