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TheRock/math-libs/libhipcxx/.upstream-tests/test/std/utilities/function.objects/comparisons/transparent.pass.cpp
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

64 lines
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C++

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include <cuda/std/functional>
// #include <cuda/std/string>
template <class T>
struct is_transparent
{
private:
struct two
{
char lx;
char lxx;
};
template <class U>
__host__ __device__ static two test(...);
template <class U>
__host__ __device__ static char test(typename U::is_transparent* = 0);
public:
static const bool value = sizeof(test<T>(0)) == 1;
};
int main(int, char**)
{
static_assert(!is_transparent<cuda::std::less<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::less<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::less<void>>::value, "");
static_assert(is_transparent<cuda::std::less<>>::value, "");
static_assert(!is_transparent<cuda::std::less_equal<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::less_equal<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::less_equal<void>>::value, "");
static_assert(is_transparent<cuda::std::less_equal<>>::value, "");
static_assert(!is_transparent<cuda::std::equal_to<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::equal_to<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::equal_to<void>>::value, "");
static_assert(is_transparent<cuda::std::equal_to<>>::value, "");
static_assert(!is_transparent<cuda::std::not_equal_to<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::not_equal_to<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::not_equal_to<void>>::value, "");
static_assert(is_transparent<cuda::std::not_equal_to<>>::value, "");
static_assert(!is_transparent<cuda::std::greater<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::greater<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::greater<void>>::value, "");
static_assert(is_transparent<cuda::std::greater<>>::value, "");
static_assert(!is_transparent<cuda::std::greater_equal<int>>::value, "");
// static_assert ( !is_transparent<cuda::std::greater_equal<cuda::std::string>>::value, "" );
static_assert(is_transparent<cuda::std::greater_equal<void>>::value, "");
static_assert(is_transparent<cuda::std::greater_equal<>>::value, "");
return 0;
}