1 //===-- Unittests for fegetround and fesetround ---------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "src/fenv/fegetround.h"
10 #include "src/fenv/fesetround.h"
11 
12 #include "utils/UnitTest/Test.h"
13 
14 #include <fenv.h>
15 
16 TEST(LlvmLibcRoundingModeTest, SetAndGet) {
17   int s = __llvm_libc::fesetround(FE_TONEAREST);
18   EXPECT_EQ(s, 0);
19   int rm = __llvm_libc::fegetround();
20   EXPECT_EQ(rm, FE_TONEAREST);
21 
22   s = __llvm_libc::fesetround(FE_UPWARD);
23   EXPECT_EQ(s, 0);
24   rm = __llvm_libc::fegetround();
25   EXPECT_EQ(rm, FE_UPWARD);
26 
27   s = __llvm_libc::fesetround(FE_DOWNWARD);
28   EXPECT_EQ(s, 0);
29   rm = __llvm_libc::fegetround();
30   EXPECT_EQ(rm, FE_DOWNWARD);
31 
32   s = __llvm_libc::fesetround(FE_TOWARDZERO);
33   EXPECT_EQ(s, 0);
34   rm = __llvm_libc::fegetround();
35   EXPECT_EQ(rm, FE_TOWARDZERO);
36 }
37