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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// test numeric_limits
// Specializations shall be provided for each arithmetic type, both floating
// point and integer, including bool. The member is_specialized shall be
// true for all such specializations of numeric_limits.
// Non-arithmetic standard types, such as complex<T> (26.3.2), shall not
// have specializations.
// From [numeric.limits]:
// The value of each member of a specialization of numeric_limits on a cv
// -qualified type cv T shall be equal to the value of the corresponding
// member of the specialization on the unqualified type T.
// More convenient to test it here.
#include <limits>
#include <complex>
#include "test_macros.h"
template <class T>
void test()
{
static_assert(std::numeric_limits<T>::is_specialized,
"std::numeric_limits<T>::is_specialized");
static_assert(std::numeric_limits<const T>::is_specialized,
"std::numeric_limits<const T>::is_specialized");
static_assert(std::numeric_limits<volatile T>::is_specialized,
"std::numeric_limits<volatile T>::is_specialized");
static_assert(std::numeric_limits<const volatile T>::is_specialized,
"std::numeric_limits<const volatile T>::is_specialized");
}
int main(int, char**)
{
test<bool>();
test<char>();
test<wchar_t>();
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
test<char16_t>();
test<char32_t>();
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
test<signed char>();
test<unsigned char>();
test<signed short>();
test<unsigned short>();
test<signed int>();
test<unsigned int>();
test<signed long>();
test<unsigned long>();
test<signed long long>();
test<unsigned long long>();
#ifndef _LIBCPP_HAS_NO_INT128
test<__int128_t>();
test<__uint128_t>();
#endif
test<float>();
test<double>();
test<long double>();
static_assert(!std::numeric_limits<std::complex<double> >::is_specialized,
"!std::numeric_limits<std::complex<double> >::is_specialized");
return 0;
}
|
