| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <cmath> |
| |
| // isnan |
| |
| // XFAIL: linux |
| |
| #include <cmath> |
| #include <type_traits> |
| #include <cassert> |
| |
| int main() |
| { |
| #ifdef isnan |
| #error isnan defined |
| #endif |
| static_assert((std::is_same<decltype(std::isnan((float)0)), bool>::value), ""); |
| static_assert((std::is_same<decltype(std::isnan((double)0)), bool>::value), ""); |
| static_assert((std::is_same<decltype(std::isnan(0)), bool>::value), ""); |
| static_assert((std::is_same<decltype(std::isnan((long double)0)), bool>::value), ""); |
| assert(std::isnan(-1.0) == false); |
| } |