1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <cmath>
11 
12 // isinf
13 
14 // XFAIL: linux
15 
16 #include <cmath>
17 #include <type_traits>
18 #include <cassert>
19 
main()20 int main()
21 {
22 #ifdef isinf
23 #error isinf defined
24 #endif
25     static_assert((std::is_same<decltype(std::isinf((float)0)), bool>::value), "");
26     static_assert((std::is_same<decltype(std::isinf((double)0)), bool>::value), "");
27     static_assert((std::is_same<decltype(std::isinf(0)), bool>::value), "");
28     static_assert((std::is_same<decltype(std::isinf((long double)0)), bool>::value), "");
29     assert(std::isinf(-1.0) == false);
30 }