diff options
Diffstat (limited to 'test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp')
| -rw-r--r-- | test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp | 145 | 
1 files changed, 0 insertions, 145 deletions
diff --git a/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp b/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp deleted file mode 100644 index 517a62a0068fa..0000000000000 --- a/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp +++ /dev/null @@ -1,145 +0,0 @@ -//===----------------------------------------------------------------------===// -// -//                     The LLVM Compiler Infrastructure -// -// This file is dual licensed under the MIT and the University of Illinois Open -// Source Licenses. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// UNSUPPORTED: c++98, c++03, c++11, c++14 - -// <numeric> - -// template<class _M, class _N> -// constexpr common_type_t<_M,_N> gcd(_M __m, _N __n) - -#include <numeric> -#include <cassert> -#include <climits> -#include <cstdint> -#include <cstdlib>    // for rand() -#include <type_traits> - -constexpr struct { -  int x; -  int y; -  int expect; -} Cases[] = { -    {0, 0, 0}, -    {1, 0, 1}, -    {0, 1, 1}, -    {1, 1, 1}, -    {2, 3, 1}, -    {2, 4, 2}, -    {36, 17, 1}, -    {36, 18, 18} -}; - - -template <typename Input1, typename Input2, typename Output> -constexpr bool test0(int in1, int in2, int out) -{ -    auto value1 = static_cast<Input1>(in1); -    auto value2 = static_cast<Input2>(in2); -    static_assert(std::is_same_v<Output, decltype(std::gcd(value1, value2))>, ""); -    static_assert(std::is_same_v<Output, decltype(std::gcd(value2, value1))>, ""); -    assert(static_cast<Output>(out) == std::gcd(value1, value2)); -    return true; -} - - -template <typename Input1, typename Input2 = Input1> -constexpr bool do_test(int = 0) -{ -    using S1 = std::make_signed_t<Input1>; -    using S2 = std::make_signed_t<Input2>; -    using U1 = std::make_unsigned_t<Input1>; -    using U2 = std::make_unsigned_t<Input2>; -    bool accumulate = true; -    for (auto TC : Cases) { -        { // Test with two signed types -            using Output = std::common_type_t<S1, S2>; -            accumulate &= test0<S1, S2, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<S1, S2, Output>(-TC.x, TC.y, TC.expect); -            accumulate &= test0<S1, S2, Output>(TC.x, -TC.y, TC.expect); -            accumulate &= test0<S1, S2, Output>(-TC.x, -TC.y, TC.expect); -            accumulate &= test0<S2, S1, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<S2, S1, Output>(-TC.x, TC.y, TC.expect); -            accumulate &= test0<S2, S1, Output>(TC.x, -TC.y, TC.expect); -            accumulate &= test0<S2, S1, Output>(-TC.x, -TC.y, TC.expect); -        } -        { // test with two unsigned types -            using Output = std::common_type_t<U1, U2>; -            accumulate &= test0<U1, U2, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<U2, U1, Output>(TC.x, TC.y, TC.expect); -        } -        { // Test with mixed signs -            using Output = std::common_type_t<S1, U2>; -            accumulate &= test0<S1, U2, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<U2, S1, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<S1, U2, Output>(-TC.x, TC.y, TC.expect); -            accumulate &= test0<U2, S1, Output>(TC.x, -TC.y, TC.expect); -        } -        { // Test with mixed signs -            using Output = std::common_type_t<S2, U1>; -            accumulate &= test0<S2, U1, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<U1, S2, Output>(TC.x, TC.y, TC.expect); -            accumulate &= test0<S2, U1, Output>(-TC.x, TC.y, TC.expect); -            accumulate &= test0<U1, S2, Output>(TC.x, -TC.y, TC.expect); -        } -    } -    return accumulate; -} - -int main() -{ -    auto non_cce = std::rand(); // a value that can't possibly be constexpr - -    static_assert(do_test<signed char>(), ""); -    static_assert(do_test<short>(), ""); -    static_assert(do_test<int>(), ""); -    static_assert(do_test<long>(), ""); -    static_assert(do_test<long long>(), ""); - -    assert(do_test<signed char>(non_cce)); -    assert(do_test<short>(non_cce)); -    assert(do_test<int>(non_cce)); -    assert(do_test<long>(non_cce)); -    assert(do_test<long long>(non_cce)); - -    static_assert(do_test<std::int8_t>(), ""); -    static_assert(do_test<std::int16_t>(), ""); -    static_assert(do_test<std::int32_t>(), ""); -    static_assert(do_test<std::int64_t>(), ""); - -    assert(do_test<std::int8_t>(non_cce)); -    assert(do_test<std::int16_t>(non_cce)); -    assert(do_test<std::int32_t>(non_cce)); -    assert(do_test<std::int64_t>(non_cce)); - -    static_assert(do_test<signed char, int>(), ""); -    static_assert(do_test<int, signed char>(), ""); -    static_assert(do_test<short, int>(), ""); -    static_assert(do_test<int, short>(), ""); -    static_assert(do_test<int, long>(), ""); -    static_assert(do_test<long, int>(), ""); -    static_assert(do_test<int, long long>(), ""); -    static_assert(do_test<long long, int>(), ""); - -    assert((do_test<signed char, int>(non_cce))); -    assert((do_test<int, signed char>(non_cce))); -    assert((do_test<short, int>(non_cce))); -    assert((do_test<int, short>(non_cce))); -    assert((do_test<int, long>(non_cce))); -    assert((do_test<long, int>(non_cce))); -    assert((do_test<int, long long>(non_cce))); -    assert((do_test<long long, int>(non_cce))); - -//  LWG#2837 -    { -    auto res = std::gcd(static_cast<std::int64_t>(1234), INT32_MIN); -    static_assert(std::is_same_v<decltype(res), std::int64_t>, ""); -    assert(res == 2); -    } -}  | 
