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d59a43fe2a
This has been done using the following command
find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)(?<!::u)u?intptr_t)|\1std::\2|' \{} \;
The std module doesn't export declarations in the global namespaace.
This is a preparation for that module.
Reviewed By: #libc, ldionne
Differential Revision: https://reviews.llvm.org/D146643
144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// template <class T>
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// constexpr T bit_ceil(T x) noexcept;
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// Constraints: T is an unsigned integer type
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// Returns: The minimal value y such that has_single_bit(y) is true and y >= x;
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// if y is not representable as a value of type T, the result is an unspecified value.
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#include <bit>
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#include <cassert>
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#include <cstdint>
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#include <type_traits>
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#include "test_macros.h"
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struct A {};
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enum E1 : unsigned char { rEd };
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enum class E2 : unsigned char { red };
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template <class T>
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constexpr bool test()
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{
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ASSERT_SAME_TYPE(decltype(std::bit_ceil(T())), T);
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LIBCPP_ASSERT_NOEXCEPT(std::bit_ceil(T()));
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assert(std::bit_ceil(T(0)) == T(1));
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assert(std::bit_ceil(T(1)) == T(1));
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assert(std::bit_ceil(T(2)) == T(2));
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assert(std::bit_ceil(T(3)) == T(4));
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assert(std::bit_ceil(T(4)) == T(4));
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assert(std::bit_ceil(T(5)) == T(8));
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assert(std::bit_ceil(T(6)) == T(8));
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assert(std::bit_ceil(T(7)) == T(8));
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assert(std::bit_ceil(T(8)) == T(8));
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assert(std::bit_ceil(T(9)) == T(16));
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assert(std::bit_ceil(T(60)) == T(64));
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assert(std::bit_ceil(T(61)) == T(64));
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assert(std::bit_ceil(T(62)) == T(64));
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assert(std::bit_ceil(T(63)) == T(64));
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assert(std::bit_ceil(T(64)) == T(64));
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assert(std::bit_ceil(T(65)) == T(128));
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assert(std::bit_ceil(T(66)) == T(128));
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assert(std::bit_ceil(T(67)) == T(128));
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assert(std::bit_ceil(T(68)) == T(128));
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assert(std::bit_ceil(T(69)) == T(128));
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#ifndef TEST_HAS_NO_INT128
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if constexpr (std::is_same_v<T, __uint128_t>) {
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T val = 168;
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T ceil = 256;
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assert(std::bit_ceil(val) == ceil);
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assert(std::bit_ceil(val << 32) == (ceil << 32));
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assert(std::bit_ceil((val << 64) | 0x1) == (ceil << 64));
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assert(std::bit_ceil((val << 72) | 0x1) == (ceil << 72));
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assert(std::bit_ceil((val << 100) | 0x1) == (ceil << 100));
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}
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#endif
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return true;
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}
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int main(int, char**)
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{
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{
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auto lambda = [](auto x) -> decltype(std::bit_ceil(x)) {};
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using L = decltype(lambda);
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static_assert(!std::is_invocable_v<L, signed char>);
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static_assert(!std::is_invocable_v<L, short>);
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static_assert(!std::is_invocable_v<L, int>);
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static_assert(!std::is_invocable_v<L, long>);
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static_assert(!std::is_invocable_v<L, long long>);
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#ifndef TEST_HAS_NO_INT128
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static_assert(!std::is_invocable_v<L, __int128_t>);
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#endif
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static_assert(!std::is_invocable_v<L, std::int8_t>);
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static_assert(!std::is_invocable_v<L, std::int16_t>);
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static_assert(!std::is_invocable_v<L, std::int32_t>);
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static_assert(!std::is_invocable_v<L, std::int64_t>);
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static_assert(!std::is_invocable_v<L, intmax_t>);
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static_assert(!std::is_invocable_v<L, std::intptr_t>);
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static_assert(!std::is_invocable_v<L, std::ptrdiff_t>);
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static_assert(!std::is_invocable_v<L, bool>);
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static_assert(!std::is_invocable_v<L, char>);
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static_assert(!std::is_invocable_v<L, wchar_t>);
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#ifndef TEST_HAS_NO_CHAR8_T
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static_assert(!std::is_invocable_v<L, char8_t>);
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#endif
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static_assert(!std::is_invocable_v<L, char16_t>);
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static_assert(!std::is_invocable_v<L, char32_t>);
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static_assert(!std::is_invocable_v<L, A>);
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static_assert(!std::is_invocable_v<L, A*>);
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static_assert(!std::is_invocable_v<L, E1>);
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static_assert(!std::is_invocable_v<L, E2>);
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}
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static_assert(test<unsigned char>());
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static_assert(test<unsigned short>());
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static_assert(test<unsigned int>());
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static_assert(test<unsigned long>());
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static_assert(test<unsigned long long>());
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#ifndef TEST_HAS_NO_INT128
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static_assert(test<__uint128_t>());
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#endif
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static_assert(test<std::uint8_t>());
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static_assert(test<std::uint16_t>());
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static_assert(test<std::uint32_t>());
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static_assert(test<std::uint64_t>());
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static_assert(test<uintmax_t>());
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static_assert(test<std::uintptr_t>());
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static_assert(test<std::size_t>());
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test<unsigned char>();
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test<unsigned short>();
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test<unsigned int>();
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test<unsigned long>();
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test<unsigned long long>();
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#ifndef TEST_HAS_NO_INT128
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test<__uint128_t>();
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#endif
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test<std::uint8_t>();
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test<std::uint16_t>();
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test<std::uint32_t>();
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test<std::uint64_t>();
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test<uintmax_t>();
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test<std::uintptr_t>();
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test<std::size_t>();
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return 0;
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}
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