norm.pass.cpp
1.26 KB
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
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <complex>
// template<Arithmetic T>
// T
// norm(T x);
#include <complex>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "../cases.h"
template <class T>
void
test(T x, typename std::enable_if<std::is_integral<T>::value>::type* = 0)
{
static_assert((std::is_same<decltype(std::norm(x)), double>::value), "");
assert(std::norm(x) == norm(std::complex<double>(static_cast<double>(x), 0)));
}
template <class T>
void
test(T x, typename std::enable_if<!std::is_integral<T>::value>::type* = 0)
{
static_assert((std::is_same<decltype(std::norm(x)), T>::value), "");
assert(std::norm(x) == norm(std::complex<T>(x, 0)));
}
template <class T>
void
test()
{
test<T>(0);
test<T>(1);
test<T>(10);
}
int main(int, char**)
{
test<float>();
test<double>();
test<long double>();
test<int>();
test<unsigned>();
test<long long>();
return 0;
}