| 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 | // test numeric_limits |
|---|
| 10 | |
|---|
| 11 | // Specializations shall be provided for each arithmetic type, both floating |
|---|
| 12 | // point and integer, including bool. The member is_specialized shall be |
|---|
| 13 | // true for all such specializations of numeric_limits. |
|---|
| 14 | |
|---|
| 15 | // Non-arithmetic standard types, such as complex<T> (26.3.2), shall not |
|---|
| 16 | // have specializations. |
|---|
| 17 | |
|---|
| 18 | // From [numeric.limits]: |
|---|
| 19 | |
|---|
| 20 | // The value of each member of a specialization of numeric_limits on a cv |
|---|
| 21 | // -qualified type cv T shall be equal to the value of the corresponding |
|---|
| 22 | // member of the specialization on the unqualified type T. |
|---|
| 23 | |
|---|
| 24 | // More convenient to test it here. |
|---|
| 25 | |
|---|
| 26 | #include <limits> |
|---|
| 27 | #include <complex> |
|---|
| 28 | |
|---|
| 29 | #include "type_algorithms.h" |
|---|
| 30 | |
|---|
| 31 | struct Test { |
|---|
| 32 | template <class T> |
|---|
| 33 | void operator()() { |
|---|
| 34 | static_assert(std::numeric_limits<T>::is_specialized, |
|---|
| 35 | "std::numeric_limits<T>::is_specialized" ); |
|---|
| 36 | static_assert(std::numeric_limits<const T>::is_specialized, |
|---|
| 37 | "std::numeric_limits<const T>::is_specialized" ); |
|---|
| 38 | static_assert(std::numeric_limits<volatile T>::is_specialized, |
|---|
| 39 | "std::numeric_limits<volatile T>::is_specialized" ); |
|---|
| 40 | static_assert(std::numeric_limits<const volatile T>::is_specialized, |
|---|
| 41 | "std::numeric_limits<const volatile T>::is_specialized" ); |
|---|
| 42 | } |
|---|
| 43 | }; |
|---|
| 44 | |
|---|
| 45 | int main(int, char**) |
|---|
| 46 | { |
|---|
| 47 | types::for_each(types::arithmetic_types(), Test()); |
|---|
| 48 | |
|---|
| 49 | static_assert(!std::numeric_limits<std::complex<double> >::is_specialized, |
|---|
| 50 | "!std::numeric_limits<std::complex<double> >::is_specialized" ); |
|---|
| 51 | |
|---|
| 52 | return 0; |
|---|
| 53 | } |
|---|
| 54 | |
|---|
